Sylvie Brett

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

Chicago Fire season 9 character preview: Sylvie Brett

Chicago Fire season 8 character review: Sylvie Brett

What does Chicago Fire have next for Sylvie Brett after shocker?

Chicago Fire season 8 midseason report: Sylvie Brett

"The White Whale" Episode 721 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Elizabeth Morris)

Chicago Fire season 8 character preview: Sylvie Brett

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 -- "The White Whale" Episode 721 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Elizabeth Morris)

Chicago Fire season 7 character review: Sylvie Brett

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 -- "Move A Wall" Episode 717 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Parrish Lewis/NBC)

Chicago Fire’s Kara Killmer talks ‘really interesting’ season 7

CHICAGO FIRE -- "You Choose" Episode 711 -- Pictured: (l-r) Teddy Sears as Kyle Sheffield, Kara Killmer as Slyvie Brett-- (Photo by: Elizabeth Morris)

Chicago Fire’s Brett and Kyle: Should they stay or split?

CHICAGO FIRE -- "This Isn't Charity" Episode 704 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Adrian Burrows/NBC)

Chicago Fire season 7 midseason report: Sylvie Brett

CHICAGO FIRE -- "The F is For" Episode 612 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Elizabeth Morris/NBC)

Chicago Fire season 7 character preview: Sylvie Brett

CHICAGO FIRE -- "The Strongest Among Us" Episode 620 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Elizabeth Morris/NBC)

Chicago Fire season 6 by character: Sylvie Brett

CHICAGO FIRE -- "A Man's Legacy" Episode 607 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Elizabeth Morris/NBC)

Chicago Fire’s Kara Killmer celebrates her birthday

CHICAGO FIRE -- "The Whole Point of Being Roommates" Episode 608 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jon Seda as Antonio Dawson -- (Photo by: Elizabeth Morris/NBC)

5 reasons Chicago Fire needs to fix Brettonio next