Matthew Casey
Matthew Casey
Full Name
Matthew Casey
Captain (2017-Present)

Construction Contractor
Alderman (52nd Ward) (Formerly)
Lieutenant (Formerly, 2011-2017)

Firefighter (Formerly, 2003-2011)
Marital Status
Nancy Casey (Mother )

Gregory Casey † (Father)
Christie Casey (Sister)
Violet Casey (Niece)
Unborn Child † (with Gabriela Dawson)
Louie Thompson (former foster son)
Gabriela Dawson (ex-wife)
Ramon Dawson (ex-father-in-law)
Camila Dawson (ex-mother-in-law)
Antonio Dawson (ex-brother-in-law)
Eva Dawson (former niece)
Diego Dawson (former nephew)
Beth (ex-girlfriend/fling)
Hallie Thomas † (ex-fiancée)
Naomi Graham (ex-fling)
Sylvie Brett (love Interest)

Kelly Severide (best friend)
1, 2, 3, 4, 5, 6, 7, 8, 9
First seen
Last seen
Appeared in
179 episodes (see below)
Portrayed by

Captain Matthew "Matt" Casey is a firefighter and the company officer on all three shifts of Truck 81, assigned to Firehouse 51.

Biography[edit | edit source]

He is the only son and second child of his mom Nancy and Gregory Casey. He has an older sister Christie and a niece named Violet.

When he was younger, his mother who struggled under the abuse of her husband until she finally snapped, causing her to shoot and kill Gregory Casey, letting herself into his home using a key that Matt had left out.

Season 1[edit | edit source]

Casey and Severide are at odds at the beginning of the season, with each blaming the other for the death of firefighter Andy Darden, which happened in front of them.

Casey is in a relationship with Hallie Thomas and is engaged to her but the two later break up. Casey gets back together with Hallie when she returns from a long trip. The two are happy until she unexpectedly is the victim of a fire at the clinic where she worked at part time. It was his team at the scene, and him who managed to take her out, she dies at the hospital later on. He's very disturbed by her death and tries to dig deeper and find out what happened with the help of Antonio. It's clear that something is going on but the head of the clinic refuses to cooperate and they meet a dead end.

Season 2[edit | edit source]

After Dawson breaks up with Mills, she helps Casey through the death of Hallie and the two start dating later on in the season.

Heather, meanwhile, ends up in a car crash, killing her best friend who was with her at the time. She asks him to take care of her children while she's away for a year and a half in prison. He agrees since he was close friends with her late husband Andy. Gabriela helps him through it until Heather is released early due to overcrowding. Heather thanks him for taking care of her boys, and even though they have grown close to him, Heather and the boys decide to move away to Florida.

During Shoved In My Face, Casey is experiencing flashbacks of the fire and suffers repeated episodes when he cannot open his locker. He and Gabriella also tell the rest of the squad about the relationship as they are given support for this. In one call Casey saves a man named Jeremy who had a pipe go through his neck. Casey makes a bet with the man that if he survives he’ll buy him a six pack of beer. Casey also experiences another episode when he is forced to stop bank robbers because the fire and he nearly beat someone to death and almost attack Randy. At the end Casey ask on his part of the bet with Jeremih when he visits them at the hospital and give him one of the beers.

At the end of Season 2, Casey proposes to Dawson but they get a sudden call for a structure fire. This leaves the proposal unanswered. On the call, the building begins with the episode Always, Remembering Shay who dies at the scene of the fire from a head injury, leaving Dawson and Severide distraught. Dawson comes back after a month's leave. She tells Casey she couldn't accept his proposal because it would be the day that Shay died and she can't mix the memory with such a sad one. They get engaged later on when Casey tells her that Shay picked out the ring with him.

Season 3[edit | edit source]

Dawson is eventually transferred to work under Casey in Truck 81 and so they can't get married as she can't work under him as long as she's a candidate. It works out great until Dawson makes a mistake, causing Casey to call her out and threaten to kick her off truck since she ignored his instructions. She's fine with it until Casey refuses to talk to her after shift as he's still upset with her. She works late at Molly's that night and asks Peter to help her. The two start talking and she tells him she's finding it hard to talk to him after shifts since the job is mixing in. Casey comes by to talk to her but finds the two and takes it the wrong way when he sees them holding hands and leaves. Peter tells him he doesn't want to get in the way the next morning and Gabriela apologizes too but he ignores her. She decides to take a break even though he doesn't want to and leaves the house, moving in with Sylvie for the meantime.

After Chief Boden's father passes away, he decides to take a break from the job for a few months, leaving Chief Pridgen in charge. Even though he seems friendly at first, he constantly mocks the team, specifically Otis. This angers Casey and he speaks up against him. Combined with this, Casey has a brief relationship with Pridgen's newly divorced ex-wife, Beth. He ends it when he finds out but Pridgen finds out, taking out his anger on Casey on the job. During a fire, Truck 81 and Squad 3 are about to go in but Pridgen deliberately redirects Truck 81 to a minor accident nearby (a man who fell down the stairs). This angers Casey but Pridgen refuses to let him work at the fire. The team leaves while Squad 3 takes care of the fire to rescue the trapped girl inside. During this, another man has rushed into help and is on the top floor but they miss him. Casey comes back and tells Pridgen that the man refused treatment and he was fine. Just then, a man falls out the top floor out of the window. The man then takes action against firehouse 51 for negligence. The case is investigated and Welch and Severide hear Pridgen tell them that Casey failed to check and that the reason he was redirected was because there was a 'life threatening' injury. Severide files another report, going against the initial statement made by Pridgen. He finds out and encourages Severide to get the promotion to Captain in OFI or be stripped of his rank but Kelly refuses and claims he's fine where he is. Things worsen since the man refused treatment and there's no paperwork indicating that Casey even went to help. Pridgen then uses Welch's vendetta towards 51 to get him to sign a statement to support him. He refuses due to respect for the people there and is kicked out. However, Welch goes on to make a statement backing Severide, resulting in Pridgen getting fired and Boden returning to take control.

Late in the season, Casey decides to find some construction work off shift. He finds a club called Stilettos where the owner, Jack Nesbitt, was looking to expand. Casey reveals to Nesbitt that he is a firefighter and Nesbitt tells him that he was a firefighter at Firehouse 114 for seven years before quitting. Casey later asks Scott Rice, who also previously worked in 114, about Nesbitt where Rice revealed Nesbitt had some bad history with some department officials, therefore leading to his resignation. Casey then got jammed up in Nesbitt's business in which he was illegally trafficking European girls into the country.

Season 4[edit | edit source]

After an undercover job, the girl Casey befriended from the club, Katya, was discovered dead in his apartment by Dawson who calls Antonio to track Casey down. Casey is found with Nesbitt and two other men at the club where a fight broke out and Casey is beating up Nesbitt. Nesbitt is immediately arrested but later released after it is discovered he is working as a CI with the FBI on the case. However, Jack is later arrested again by the FBI and CPD after tailing Casey one night

At the start of the season, Gabby learns she is pregnant and leaves her job as firefighter to take an office job in the arson division. However, her and Casey's happiness is short-lived. Gabby and Boden are at the office trying to find files on a case when she cries out in pain. She's taken to hospital quickly and within a few hours, Doctor Halstead reveals that she's miscarried. She's broken up about this and he tells her that the baby never had a chance. Him and Gabby have this rough patch in their relationship.

During a tornado in Chicago, power-lines are cut and houses destroyed. The 52nd state Alderman of Chicago encourages Casey, who was at the scene and helped take many of the victims to the only homeless shelter in the area, to make a speech to drive in donations. He is happy to do so and helps to raise thousands of dollars. However, when he returns to the shelter, many of the people are still there and have not received any help or donations. Casey talks to the Alderman, who brushes him off, implying he has taken the money for his own personal use. He tells Casey that it's just 'politics'. Angered by this, he decides to run for Alderman himself, after a lot of encouragement from Gabby.

However, during his campaigning, he finds he needs to do more than make promises. He is constantly overthrown in his decisions and shown under a bad light by others. He is frustrated even more so when someone covers cars and billboards claiming that Casey is a 'murderer's son'. Knowing his opponent did this, he threatens him to take the posters down but he is dismissed, causing Casey to think about withdrawing himself from the elections. However, Gabby tells him to keep going and is upset to hear that he is thinking of quitting, which encourages him to continue.

Casey finally gives in and talks to a gang-leader who had promised to help him win if they took down cameras from the street-corners to let them deal drugs. Initially, he was against this idea but agrees to do so, asking them just for one thing - not to hang around the corners around the children's high school. They aren't sure about this but imply that they are willing to do so. However, this still isn't enough, as he loses his first debate to his opponent, and then is informed about a second debate that no one told him about. However, as his campaign affects his ability to work, he is told by Chiefs to stop or not miss any time off work. He therefore agrees and deliberately misses the second debate as he is on a call. His opponent calls him weak and says that Casey is not willing to give up enough for his job as Alderman as he still has a second job. This stresses him out but the media catch him risking his life for a mechanic and publish it in the newspapers as the reason for him missing the debate. This heroism helps him to win the four-year term as Alderman.

Later on, Truck 81 responds to a call of a person in distress. Upon arrival, they find that the victim is a high-school boy. They help him down and he fortunately survives. The boy's grandmother then shows up at the firehouse and tells Casey to do more as Alderman. He finds from Antonio that the boy was attacked by a gang who wanted revenge on Victor, the boy, because his older brother was previously affiliated with the same gang but helped take some of them down when he agreed to help the police. Casey goes to see the gang leader again and tells him to stop terrorizing Victor but they are unwilling to. 3 days later, Casey goes to see Victor, who wants to go to graduation. He tells him not to as he could be attacked again, but Victor remains unafraid. Seeing no other option, he gets together with the firehouse and they line up along the road ready to protect him. Chief Boden and Casey personally walk with Victor until he is at the school.

Casey also goes through a difficult time in his and Gabby's relationship after a call causes her to make an unexpected decision. They find a mother with an overdoes and a small 1-2 year old boy in the flat with a fire in the apartment. They help the mother out and Gabby goes in to find the boy. She finds him hiding under the bed and after some time, agrees to come out. When she comes out, the boy is unwilling to let go of her, so she goes with him to the hospital. However, social workers tell her that he was fostered and will be back in a foster home. She feels terrible about him and tells Casey she wants to foster him. However, she had previously told him that she didn't want to get married and so he tells he that it's not such a good idea. She is upset and leaves, but tells him the next morning that she has decided she wants to take the boy in herself and he doesn't have to help her. In the season 4 finale, Dawson does get to foster Louie, the boy from the flat fire, and Casey goes on a trip with his political adviser. Towards the end of the episode she kisses him and writes her room number on a napkin. He then goes to Dawson's new loft attempt that Herman owns and she hugs him. It does not say whether he tells her or not.

Season 5[edit | edit source]

The first half of the season mostly deals with Louie and Casey's political career. A political advisor tries to get him to hire her to work on his campaign, but he refuses. Just days later, another opposing politician, who had threatened to destabilize Casey's career unless he listened to his own demands, tells the media that Casey used his position as alderman to skip the fostering waiting time for Louie to adopt him. This scares both him and Gabby as both are threatened with the issue of Louie being taken away again.

Casey decides to call the advisor, who is on the case immediately and solves the issue in no time. However, he soon discovers that this advisor and the politician worked together to trick Casey so that she could use him for her own gains. He fires her afterwards and he goes back home to Louie and Gabby, who he is evidently happy with.

Later on, Gabby and Casey are told that they can now adopt Louie if they want, but that Gabby will be seen as a single mother as they are not married. Casey tries to ask around for another option but since they aren't engaged or married, there is none. However, later on at Molly's, they both get the idea of running away and getting married. In One Hundred, Casey and Dawson get married at the courthouse in their uniforms, and the whole firehouse attends the ceremony. On their way home, Casey sees the man who has been stalking them for the past few days and running away. The man finally comes out and says that he is Louie's father and that he wants him back. In the season 5 finale, tensions continue to rise between the married couple. however, things take a dramatic turn when 51 is called out to fight a large building fire. This fire proves to be an emotional one. Matt calls Gabby for what seems to be the last time on his radio to tell her that he loves her and that she's his miracle.

Season 6[edit | edit source]

Not dead but unconscious, Matt is found by Chief Boden after the fire is put out. And surprisingly, instead of a funeral, uniformed personnel are actually attending a ceremony in which Matt receives a medal for not only being brave at that fire, but for being brave everyday on the streets of Chicago. He is given this medal by Chief Boden. A fire at the high school gets Matt and Kelly to drag an injured and burned female teacher out and into the ambulance that takes her to the hospital. At home, when Gabby reminds Matt not to say good-bye to her again, Matt obeys Gabby. After the rubble, Matt finds and rescues Gabby and the soldier from an annoying disaster, and the soldier is rushed to a nearby hospital (A Breaking Point). After having learned that Hope forged Chief Mullens' signature on a transfer form for Stella Kidd (from Fire House 51 to Public Relations) Matt and Chief Boden dismiss her from the fire station (Down Is Better).

While shutting off a damaged gas valve to slow down a fire, Casey and Severide realize that as soon as they let go of the valve wheel, the whole roof is going to go. They run off the edge of the roof together and jump into the river several stories below, still in their heavy turnout gear. Matt surfaces a little sore, but overall fine. Kelly, however, is injured and Stella rescues him (The F is For). Matt is comforted by Gabby, and Kelly recovers. A photo of their daring jump makes the front page of the newspaper and is great press for the department. The photographer who took the photo is invited by the CFD to do a "day in the life" type spread. Casey catches the photographer attempting to take photos of Gabby while she's naked in the shower and stops him.

Matt helps Gabby with Bria and helping her get ready for prom. He decides they should have something good to remember so he lets Bria and her date ride in the Truck. After the truck leaves Gabby tells Matt she wants to start trying again which he agrees to. After going to a doctor and finding out Gabby has a 10% chance of dying if she gets pregnant he decides he doesn't want her getting pregnant. He brings up adoption and even looks into it, which makes Gabby upset since she's afraid the same thing will happen that happened to Louie. After a huge fight in the last episode Gabby tells Matt she'll be right back and goes to ask about a job in Puerto Rico while he stays home, not sure where his wife has gone. They eventually get divorced.

Season 7[edit | edit source]

Gabby tells Matt that she is taking a permanent position with the relief effort in Puerto Rico. Gabby and Matt get divorced in Season 7, Episode 8 per his statement to Kelly Severide that they signed the papers.

Naomi Graham asks Casey for his help solving a series of explosions in the kitchens of mobile homes. They get together after seemingly solving the case, only to wake up and find Matt's apartment ablaze. The company had sent someone to scare Matt and Naomi so they would back off on the lawsuit, but they gather enough evidence to lock them up.

Season 8[edit | edit source]

The mattress factory spirals out of control, and Otis is very badly injured. He is taken to the hospital, where the doctors reveal that they will not be able to save him. Cruz says goodbye to him at the hospital, and he dies shortly afterwards.

Three months after his death, Chief Boden tells Casey that he needs to pick a new team member, which Casey is hesitant to do as he does not want to replace Otis. It is revealed that Casey carries the weight of Otis's death more than anyone else in the firehouse though he chooses to grieve silently for the loss of one of his own. At the end of that same episode, Casey is one of the first people to kneel in front of the new statue dedicated to Otis's memory.

Casey then picks a reckless firefighter to join 51 - Blake Gallo. Boden is reluctant to bring him on because of his tendency to not follow instructions and seemingly put himself in dangerous situations. Casey is adamant on bringing Blake on, and ends up convincing Boden to give him a chance.

Season 9[edit | edit source]

As of Rattle Second City, he is at the firehouse where he welcomes Cruz's friend to be a new paramedic. When Sylvie worries over a stalker, she calls Casey and he decides to sleep over to protect her. They end up having a game night where Casey does an Australian accent. In Episode 2, Sylvie tells him “It’s always been you”. This statement references Season 7 and forward. Casey then tries to awkwardly ask Sylvie out to Molly’s. At Molly’s, Gallo lets the tea spill on the fact that Casey jumped out of a moving fire truck to get to Brett. Him and Brett share a moment. Later on in Episode 2, he comes over to Sylvie’s apartment and asks if she has been avoiding him. She kisses him, and he kisses her again after. Before they get too far, Sylvie asks him about if Gabby would come back to Chicago and asked you to go, would you leave with her? Matt says he doesn’t know. He wants to stay with Sylvie, but out of respect for her, he leaves.

Abilities[edit | edit source]

  • Skilled Fighter: Casey has shown to be a skilled fighter as he was able to stand up to two muggers at once and even disarm robbers with guns. He was even able to take down CPD Officer Hank Voight single-handedly. Casey relies on brute force and boxing as opposed to Severide who relies on slightly more nimble moves in a fight.

Medical Injuries[edit | edit source]

In reference to the episode: "Not Like This".

An apartment fire rages across sixteen units, with families and civilians trapped. Truck 81 work together to get everyone out safely. Boden orders an evacuation but seconds later Casey learns that there is a baby still inside the building. Matthew ignores the evacuation order to save the baby, on his way to the exit a support beam falls on him, activating his ADSU. Casey is rushed to hospital in Ambulance 61, with Dawson, Shay and Severide. Casey is diagnosed with a epidural hematoma and is rushed into emergency surgery and placed on leave for six weeks while he recovers, after coming back he is still having problems with his memory and dizziness.

Memorable Quotes[edit | edit source]

  • (To Griffin Darden) "There is no greater love than to lay down one's life for another. This badge case stands as a memorial to the fallen firefighters and paramedics who lost their lives in service for the citizens of Chicago." - Casey S02E06
  • (To Griffin Darden) "It's okay to cry here. I have." - Matthew Casey (Season 2, Episode 6)
  • (To Gabby); "What's wrong with being dependent on someone who loves you with everything he has?" - Casey S06E23

Relationships[edit | edit source]

Romance[edit | edit source]

Hallie Thomas[edit | edit source]

Matthew was engaged to Hallie Thomas. After responding to a motor vehicle accident and delivering a baby there, Casey asks Hallie if she wants children, her answer is no and due to their different choices, Hallie cancels the wedding and moves away.

Hallie returns a few months later and realizes that she misses Casey. Hallie and Casey got back together and were getting along well. However this ends, when she was killed and then left to burn in a fire at the clinic she worked at. Casey had a hard time dealing with Hallie's death but he eventually managed to get closure and move on.

Gabriela Dawson[edit | edit source]

Casey and Dawson were first good friends from Firehouse 51. Gabby crushes on Matt throughout the beginning of season 1, even though he's in a relationship at the time. After Hallie and Matt break up Dawson asks Casey to be her date for a Christmas function. At the end of the night they lean in to kiss, however, instead Casey kisses Dawson on the cheek.

After Casey loses his late fiance, Hallie, he leans on Dawson for support - they soon become very close. Sometime later Casey and Dawson's feelings for each other grow. One night Casey goes to Dawson's house and they get together.

In Season 2, Casey proposes to Dawson.

Unfortunately, Casey and Dawson take a break - caused by their relationship going from boss to employee to fiances.

During the break, Casey and Dawson become close again and resolve their issues, leading to a one night stand. Resulting in Dawson getting pregnant.

Casey and Dawson then get back together but sadly lose the baby. Dawson and Casey are in love and better than ever even through the tragedy.

Dawson and Casey get married and foster a child named Louie. Gabby is especially torn up after Louie's father comes back into the picture and takes him back. This discourages Gabby from wanting to adopt in the future. When she decides that she wants to start trying for another baby, Dawson goes in for a fertility test after getting impatient and finds that she has an aneurysm that will be irritated if she gets pregnant again, and may kill her. Dawson wants to move forward with attempting to get pregnant but Matt tells her that she can't get pregnant because he can't lose her.

Their relationship is put on hold after Dawson decides to leave Chicago to go help with the relief effort in Puerto Rico.

In Season 7 Episode 8; Casey mentions to Kelly Severide that he and Gabby signed the divorce papers.

In That Kind Of Heat, Casey was unable to answer Sylvie's question of still loving Gabby, staying he didn’t know. Out of respect for Sylvie, he leaves. They will go on to talk in 9x03.

Sylvie Brett[edit | edit source]

Matt has been developing a bond with Sylvie since Season 7. They had grown closer as friends, bonding over the loss of Gabby. She helps him look for an apartment after a fire ruins his and Gabby's place, and she is concerned for him when he suffers some trauma after a scary call, giving him advice and offering to be there if he ever wanted to talk. However, Sylvie starts questioning her own feelings about Casey when her friend Olivia, whom she had set up on a date with Casey, tells her that she should be with Matt, and that they were "meant for each other". Sylvie gets advice from Kidd and Foster on this who seemingly agree. Sylvie is now more awkward and nervous around Casey. After getting injured on a call, Sylvie tends to a burn on his neck, teasing him about his bandage skills. Casey then compliments her work, jokingly telling her that she should work in EMS. The two then share a long look, before Sylvie quickly leaves and Matt is clearly confused. Matt now seems unsure about his own feelings for Sylvie, and when Boden invites him to a dinner, telling him to bring a date, he nervously tries to ask Sylvie but is interrupted before getting the chance and then gets cold feet. When he sees Sylvie and the Chaplain at Molly's sharing a hug, he jumps to conclusions and assumes that they had gotten back together. He then tells Sylvie that they are good together, before she gets a chance to explain that they're just friends. Sylvie seems upset and also confused further. The Chaplain then proposes to Sylvie at the firehouse, with everyone looking on, including a stunned Casey, and Sylvie accepts, although she seems reluctant. Matt congratulates Brett, and she tells him that it was what he said at Molly's that made her accept. He realises that he had unknowingly pushed Brett back to the Chaplain, and he is clearly upset by this.

At the beginning of Season 8, Sylvie has moved to Fowlerton with the Chaplain, but she is soon unsatisfied with the slow-paced life of the firehouse there and misses Chicago and everyone at 51, and she and Kyle amicably break up and she returns to Chicago. She reunites with everyone and Casey is happy to see her back, saying that 51 isn't the same without her. The two continue to grow closer, and Casey starts becoming jealous when he sees her with another man, Ryan, and assumes they're dating to which Sylvie quickly explains that they're just friends, prompting knowing looks from Foster. When he teases her again about Ryan, she talks about her lack of luck when it comes to romance, but he tells her that she deserves to find exactly what she wants in a relationship, resulting in some heart-eyes on Sylvie's part. When Gabby briefly returns to Chicago to invite Matt to a charity ball, Matt asks Brett's advice on this, and she encourages him to go, but she is visibly upset by this. He goes to the ball and he and Gabby end up spending the night together before she leaves the next morning. Sylvie then asks Matt how the night went, to which he told her it was great, unbeknownst to her that he had slept with Gabby. Foster teases Sylvie some more but she tells her "he seems happy; that makes me happy". Casey and Brett tend to an elderly victim who had lost his wife in a house fire, and they search for his cat for him. Whilst they wait, Sylvie asks for Matt's advice as she has received information that her birth mother is seeking contact. Not quite knowing what to do, Matt tells her "I've been impressed by you ability to see the good in people, always. If anyone can handle this kind of bomb dropped in their lap, it's you." She then receives another letter but from her birth mother herself and Sylvie asks Matt to throw it away for her, to which he agrees but keeps it anyway. Later when Brett asks about the letter, Matt smugly shows her the letter saying that he knew she'd change her mind. But she gets angry, to his hilarious confusion, as he didn't do what she asked and then asks him to get rid of it again. He then places the letter in the trash. However, Brett later comes to his apartment saying that she'd changed her mind and wanted the letter back. Matt seems confused as she saw him throw it away, but Sylvie doesn't buy it and asks him if he went back and got the letter after she'd left. Matt smiles and says "are you gonna yell at me again if I did?" She asks him to stay with her as she opened it, only to find a name, Julie, and an address. Matt offers to drive Brett to Julie's house to which Brett is grateful. Sylvie and Julie are getting along great and she introduces Julie to Matt. Julie mistakes their relationship and asks Sylvie how long they had been dating, to which Sylvie quickly explains that they're just friends, but Julie is not entirely convinced. When a realtor asks Brett out and she seems unsure, Julie tells Sylvie that she's hung up on Matt. Sylvie reaffirms their platonic relationship, and explains that Matt was married to her best friend, and so nothing was going to happen. However, Sylvie starts to question herself as to why she was reluctant to date anyone else. As she leaves after a shift, the relator calls her, and, as she looks on at Matt, she turns him down, telling him that she's "got some things to sort out". Here, Sylvie is finally acknowledging her growing feelings for Matt. Julie goes into labour and Sylvie calls Matt for support when the doctor explains that there are some complications. When Matt arrives at the hospital, the doctor tells Sylvie that Julie had died in labour from eclampsia. Sylvie is devastated, but goes to see her little sister and cries as she holds her. Sylvie is broken up by Julie's death and Matt continues to check up on her, telling her that how she's feeling isn't silly. When Julie's husband starts to have doubts about raising the baby, he asks Sylvie to look after her or he'll put her up for adoption. Sylvie is shocked and completely unsure what to do. She tells Matt and then breaks down in his arms, grieving for her mother. Matt tells her that "whatever you decide, I'm here". Sylvie appreciates this but ends up convincing Julie's husband to keep the baby. At Cruz's wedding, Matt and Sylvie share some longing looks during the vows.

It's Season 9 and Sylvie worries over a stalker, and comes back to find her apartment unlocked. Before going inside she calls Casey and he insists on sleeping over to protect her until they hear otherwise. They spend the evening playing Heads Up, teasing each other over their terrible Australian accents. They then share a moment before Sylvie goes to bed, but not before gazing at Matt as he makes up the couch to sleep on. Later on, Brett and Mackey get into some trouble and the stalker runs them off a bridge and the ambulance crashes. Upon hearing of this Casey rushes to the scene. When he sees the wreck, he jumps off the moving truck to reach Brett quicker. He runs to her, checking to see if she's ok, to which she is stunned to see him there so fast. Brett later questions Casey as to why she only saw him there at first, but Casey lies and tells her that they had all rushed down together. Sylvie then blurts out "it's always been you", to Casey's shock, as he seemingly realises her feelings for him. She tries to roll back on this but Casey isn't convinced. Sylvie runs to Kidd telling her "I basically just told Casey that I'm in love with him". Kidd asks her why it's such a bad thing for him to know how she feels, but she tells her she can't feel that way. She then tries to pretend she never said it so that things could go back to the way they were. Later Casey awkwardly asks Brett out to Molly's. At Molly's, Gallo recounts the real events of the accident, to Brett's amazement, as she realises Matt feels the same way about her. The two share some longing looks whilst Gallo talks. But she abruptly leaves, making up an excuse about meeting a friend, and Matt seems hurt and confused. For the duration of their next shift, Sylvie avoids Matt, to his annoyance, and Severide picks up on this and tells him to sort it out. Wanting answers, Matt shows up at Brett's apartment and she tells him that she was only avoiding him "so I wouldn't end up doing this" and she kisses him. He then kisses her back. Sylvie then admits that she'd "wanted this for for a long time" and Matt agrees "me too". Just as it seems that the two were going to sleep together, Sylvie pauses and explains the reason that she had been so scared to act on her feelings for Casey, asking him: "if Gabby came back to Chicago, right now, tonight, and asked you to leave with her, would you go?" Matt hesitates but tells her that he hadn't spoken to Gabby in ages, but Brett doesn't see this as an answer to her question and pushes him further before he admits "I don't know". Sylvie is clearly heartbroken, in that her fears were real, telling Matt that she knew he was "still in love with Gabby all along" and so blames herself for her actions. Matt tries to explain that things were more complicated than that but Sylvie doesn't see this as complicated at all. She then asks Casey to leave, and although reluctant, he agrees to. A devastated Sylvie then breaks down alone on her couch.

Friends[edit | edit source]

Kelly Severide[edit | edit source]

Kelly Severide and Matthew Casey are co-workers and lieutenants at Firehouse 51. At the beginning of season one, after the death of a close friend, they had some trouble getting along and often butted heads, but would come together for the sake of the house. By Season 2 they have stopped blaming each other and get along very well. They are often seen putting themselves in danger to protect each other, such as when Kelly went into an unstable burning building to help Casey find his fiancé. After Casey was injured in episode 2x10, Kelly was the first to notice that he was not healed. He was very concerned about Casey, asking him numerous times If he was okay and offering help. The two are close friends.

Following Shay's death, Severide moves in with Casey and Dawson. Severide and Casey become roommates after Dawson moves out. Some of the strain on Casey and Dawson's relationship comes from Casey and Severide's relationship; with Casey putting Severide in front of Dawson, Such as when Dawson tells Casey to ask Severide to move out and Casey responds by saying Severide "is going to need [him] on his side, so good or bad that's where [he'll] be".

In season 3 episode 15, Severide instantly turns down an order from his chief to spy on Casey. He also tells the chief that Casey is "one of the finest fire fighters [he's] ever had the opportunity to work with in the entire CFD."

In Season 5 when Dawson and Casey are getting back together and adopting Louie, Severide offers to move out to give the three of them space.

Severide is one of the only people on the show, besides Dawson, Boden, and Voight (Chicago P.D.), to call Casey by his first name. Severide is the only person on the show to call Casey by the nickname, Case. Casey is the only person on the show to call Severide by the nickname, Sev.

Trivia[edit | edit source]

  • Casey's Badge Number is 5939.
  • In S06E03, Casey is promoted from Lieutenant to Captain.
  • His wife had a miscarriage.
  • He wears the same jacket for four seasons.
  • He is the only character to have an American flag on his turnout jacket.

Appearances[edit | edit source]

Season 1 Appearances
"Pilot" "Mon Amour" "Professional Courtesy" "One Minute" "Hanging On"
"Rear View Mirror" "Two Families" "Leaving the Station" "It Ain't Easy" "Merry Christmas, Etc."
"God Has Spoken" "Under the Knife" "Warm and Dead" "A Little Taste" "Nazdarovya!"
"Viral" "Better to Lie" "Fireworks" "A Coffin That Small" "Ambition"
"Retaliation Hit" "Leaders Lead" "Let Her Go" "A Hell of a Ride"
Season 2 Appearances
"A Problem House" "Prove It" "Defcon 1" "A Nuisance Call" "A Power Move"
"Joyriding" "No Regrets" "Rhymes With Shout" "You Will Hurt Him" "Not Like This"
"Shoved In My Face" "Out With A Bang" "Tonight's The Night" "Virgin Skin" "Keep Your Mouth Shut"
"A Rocket Blasting Off" "When Things Got Rough" "Until Your Feet Leave the Ground" "A Heavy Weight" "A Dark Day"
"One More Shot" "Real Never Waits"
Season 3 Appearances
"Always" "Wow Me" "Just Drive the Truck" "Apologies Are Dangerous" "The Nuclear Option"
"Madmen And Fools" "Nobody Touches Anything" "Chopper" "Arrest in Transit" "Santa Bites"
"Let Him Die" "Ambush Predator" "Three Bells" "Call It Paradise" "Headlong Toward Disaster"
"Red Rag the Bull" "Forgive You Anything" "Forgiving, Relentless, Unconditional" "I Am the Apocalypse" "You Know Where to Find Me"
"We Called Her Jellybean" "Category 5" "Spartacus"
Season 4 Appearances
"Let It Burn" "A Taste of Panama City" "I Walk Away" "Your Day Is Coming" "Regarding This Wedding"
"2112" "Sharp Elbows" "When Tortoises Fly" "Short and Fat" "The Beating Heart"
"The Path of Destruction" "Not Everyone Makes It" "The Sky Is Falling" "All Hard Parts" "Bad For the Soul"
"Two Ts" "What Happened to Courtney" "On the Warpath" "I Will Be Walking" "The Last One for Mom"
"Kind of a Crazy Idea" "Where the Collapse Started" "Superhero"
Season 5 Appearances
"The Hose or the Animal" "A Real Wake-Up Call" "Scorched Earth" "Nobody Else Is Dying Today" "I Held Her Hand"
"That Day" "Lift Each Other" "One Hundred" "Some Make It, Some Don't" "The People We Meet"
"Who Lives and Who Dies" "An Agent of the Machine" "Trading in Scuttlebutt" "Purgatory" "Deathtrap"
"Telling Her Goodbye" "Babies and Fools" "Take a Knee" "Carry Their Legacy" "Carry Me"
"Sixty Days" "My Miracle"
Season 6 Appearances
"It Wasn't Enough" "Ignite on Contact" "An Even Bigger Surprise" "A Breaking Point" "Devil's Bargain"
"Down Is Better" "A Man's Legacy" "The Whole Point of Being Roommates" "Foul Is Fair" "Slamigan"
"Law of the Jungle" "The F is For" "Hiding Not Seeking" "Looking for a Lifeline" "The Chance to Forgive"
"The One That Matters Most" "Put White On Me" "When They See Us Coming" "Where I Want To Be" "The Strongest Among Us"
"The Unrivaled Standard" "One for the Ages" "The Grand Gesture"
Season 7 Appearances
"A Closer Eye" "Going To War" "Thirty Percent Sleight Of Hand" "This Isn't Charity" "A Volatile Mixture"
"All The Proof" "What Will Define You" "The Solution to Everything" "Always A Catch "Inside These Walls"
"You Choose" "Make This Right" "The Plunge" "It Wasn't About Hockey" "What I Saw"
"Fault in Him" "Move a Wall" "No Such Thing As Bad Luck" "Until the Weather Breaks" "Try Like Hell"
"The White Whale" "I'm Not Leaving You"

In construction

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