Matthew Casey

CHICAGO FIRE -- "The Chance To Forgive" Episode 615 -- Pictured: (l-r) Taylor Kinney as Kelly Severide, Jesse Spencer as Matthew Casey -- (Photo by: Elizabeth Morris/NBC)

Quiz: Who said it, Casey or Severide from Chicago Fire?

Chicago Fire writers have no plans to break Brettsey up

Is Jesse Spencer returning to Chicago Fire?

Jesse Spencer already removed from Chicago Fire season 10 poster

"Two Hundred" Episode 1005 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Lori Allen/NBC)

Chicago Fire spoilers: Why did Jesse Spencer leave Chicago Fire?

CHICAGO FIRE -- "Headcount" Episode 1002 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Matthew Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire spoilers: Do Casey and Brett break up in the 200th episode?

CHICAGO FIRE -- "Two Hundred" Episode 1005 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Lori Allen/NBC)

Chicago Fire spoilers: Why is Casey leaving Chicago Fire?

CHICAGO FIRE -- "The Right Thing" Episode 1004 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Is Casey leaving Chicago Fire?

CHICAGO FIRE -- "The Right Thing" Episode 1004 -- Pictured: (l-r) Jesse Spencer as Matthew Casey, David Eigenberg as Christopher Herrmann -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire: Is Casey going to foster Griffin and Ben?

CHICAGO FIRE -- "No Survivors" Episode 916 -- Pictured: (l-r) Alberto Rosende as Blake Gallo, Jesse Spencer as Matthew Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire spoilers: Is Casey 51’s new Chief?

CHICAGO FIRE -- "No Survivors" Episode 916 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Is Jesse Spencer leaving Chicago Fire?

CHICAGO FIRE -- "Headcount" Episode 1002 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Matthew Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire season 10 to throw several obstacles at Casey and Brett

CHICAGO FIRE -- "Welcome to Crazytown" Episode 807 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Adrian Burrows/NBC)

Chicago Fire season 10: Kara Killmer shares hilarious Brettsey video from Chicago Fire set

CHICAGO FIRE -- "Escape Route" Episode 908 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

What’s next for Matthew Casey in Chicago Fire season 10?

CHICAGO FIRE -- "No Survivors" Episode 916 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire season 9 finale spoilers: Do Brett and Casey finally get together?

"Double Red" Episode 909 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Did Chicago Fire need Gabby Dawson for its big Brettsey moment?

CHICAGO FIRE -- "My Lucky Day" Episode 905 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire season 9 spoiler: Does Casey choose Brett or Dawson?

CHICAGO FIRE -- "I'll Cover You" Episode 818 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Adrian Burrows/NBC)

Chicago Fire season 9 character preview: Matthew Casey

CHICAGO FIRE -- "I'll Cover You" Episode 818 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Adrian Burrows/NBC)

Chicago Fire season 8 character review: Matthew Casey

CHICAGO FIRE -- "Best Friend Magic" Episode 809 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Adrian Burrows/NBC)

Chicago Fire season 8 midseason report: Matthew Casey

CHICAGO FIRE -- "Move A Wall" Episode 717 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Parrish Lewis/NBC)

Chicago Fire season 8 character preview: Matthew Casey

CHICAGO FIRE -- "The White Whale" Episode 721 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Matthew Casey -- (Photo by: Elizabeth Morris)

Why Chicago Fire’s Casey and Brett relationship could work

CHICAGO FIRE -- "A Volatile Mixture" Episode 705 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Elizabeth Morris/NBC)

Chicago Fire season 7 character review: Matthew Casey

CHICAGO FIRE -- "The White Whale" Episode 721 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Matthew Casey -- (Photo by: Elizabeth Morris)

Chicago Fire is officially shipping Casey and Brett, so are you ready?

CHICAGO FIRE -- "What I Saw" Episode 715 -- Pictured: (l-r) Jesse Spencer as Matthew Casey, Taylor Kinney as Kelly Severide -- (Photo by: Parrish Lewis/NBC)

Jesse Spencer and Taylor Kinney returning for Chicago Fire season 8

CHICAGO FIRE -- "Make This Right" Episode 712 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Elizabeth Morris)

Chicago Fire questions to answer: Matthew Casey

CHICAGO FIRE -- "The Plunge" Episode 713 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Elizabeth Morris)

Chicago Fire’s Jesse Spencer celebrates his birthday

CHICAGO FIRE -- "Going to War" Episode 702 -- Pictured: (l-r) Jesse Spencer as Matthew Casey, Eamonn Walker as Chief Boden -- (Photo by: Elizabeth Morris/NBC)

Chicago Fire season 7 midseason report: Matthew Casey