Kara Killmer

CHICAGO FIRE -- "Red Waterfall" Episode 1122 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Christopher Allen as Dylan -- (Photo by: Adrian S Burrows Sr/NBC)

3 storylines that desperately need closure in Chicago Fire season 12

The 3 best (and 3 worst) Chicago Fire characters

What’s next for Sylvie Brett in Chicago Fire season 12?

How old is Sylvie Brett on Chicago Fire?

CHICAGO FIRE -- "Red Waterfall" Episode 1122 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Christopher Allen as Dylan -- (Photo by: Adrian S Burrows Sr/NBC)

Chicago Fire star shares extra Brettsey footage on Instagram

CHICAGO FIRE -- "Red Waterfall" Episode 1122 -- Pictured: (l-r) Jesse Spencer as Matthew Casey, Kara Killmer as Sylvie Brett -- (Photo by: Adrian S Burrows Sr/NBC)

Chicago Fire: Will Brett say no to Casey’s proposal?

CHICAGO FIRE -- "Red Waterfall" Episode 1122 -- Pictured: (l-r) Jesse Spencer as Matthew Casey, Kara Killmer as Sylvie Brett -- (Photo by: Adrian S Burrows Sr/NBC)

Chicago Fire spoilers: Did Brett say yes to Casey’s proposal?

CHICAGO FIRE -- "Danger Is All Around" Episode 1118 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Matthew Casey -- (Photo by: Lori Allen/NBC)

Chicago Fire: S11 Finale trailer hints at Brettsey reunion

CHICAGO FIRE -- "The Magnificent City of Chicago" Episode 1022 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

3 One Chicago characters who might leave in the finales

CHICAGO FIRE -- "Acting Up" Episode 1116 -- Pictured: (l-r) Andy Allo as Seager, Hanako Greensmith as Violet, Kara Killmer as Sylvie Brett -- (Photo by: Adrian S Burrows Sr/NBC)

Chicago Fire: Is [SPOILER] going to become a mother?

CHICAGO FIRE -- "Never, Ever Make a Mistake" Episode 1120 -- Pictured: (l-r) Eamonn Walker as Wallace Boden, Kara Killmer as Sylvie Brett -- (Photo by: Adrian S Burrows Sr/NBC)

Is Brett going to adopt kids in Chicago Fire season 11?

CHICAGO, IL - OCTOBER 30: Kara Killmer attends the press junket for "One Chicago" on October 30, 2017 in Chicago, Illinois. (Photo by Timothy Hiatt/Getty Images)

Will Kara Killmer leave Chicago Fire in season 11 finale?

CHICAGO FIRE -- "The Magnificent City of Chicago" Episode 1022 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire: Will Casey and Brett get married in season 12?

CHICAGO FIRE -- "Damage Control" Episode 1115 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Christopher Allen as Dylan -- (Photo by: Adrian S Burrows Sr/NBC)

Is Brett leaving Chicago Fire in the season 11 finale?

CHICAGO FIRE -- "The Magnificent City of Chicago" Episode 1022 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Will Casey and Brett get back together on Chicago Fire?

CHICAGO FIRE -- "The Magnificent City of Chicago" Episode 1022 -- Pictured: (l-r) Miranda Rae Mayo as Stella Kidd, Taylor Kinney as Kelly Severide -- (Photo by: Adrian S. Burrows Sr./NBC)

3 Chicago Fire couples who could break up in season 11

CHICAGO FIRE -- "The Magnificent City of Chicago" Episode 1022 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire: Does Casey’s return mean romance with Brett?

CHICAGO FIRE -- "The Magnificent City of Chicago" Episode 1022 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Did Chicago Fire retcon Brett and Casey’s romance?

CHICAGO FIRE -- "Something for the Pain" Episode 1110 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Adrian S Burrows Sr/NBC)

Chicago Fire 2023: Is Brett leaving the show in season 11?

CHICAGO FIRE -- "Angry is Easier" Episode 1107 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Hanako Greensmith as Violet Mikami, Simon Jon Provan as Dave -- (Photo by: Adrian S Burrows Sr/NBC)

Chicago Fire boss: Brett has ‘a lot going on’ in season 11

CHICAGO FIRE -- "The Magnificent City of Chicago" Episode 1022 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire boss on Brett: ‘Was Casey the love of her life?’

CHICAGO FIRE -- "Every Scar Tells a Story" Episode 1102 -- Pictured: Jimmy Nicholas as Chief Hawkins -- (Photo by: Adrian S Burrows Sr/NBC)

Chicago Fire: [SPOILER] has surprise connection to Hawkins

"All-Out Mystery" Episode 1106 -- Pictured: Taylor Kinney as Kelly Severide -- (Photo by: Adrian S Burrows Sr/NBC)

Chicago Fire bosses teases Severide and Brett ‘connection’

CHICAGO FIRE -- "The Magnificent City of Chicago" Episode 1022 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Jesse Spencer as Casey -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire: Brett will get new love interest (SPOILERS)

CHICAGO FIRE -- "Every Scar Tells a Story" Episode 1102 -- Pictured: (l-r) Brian James Titus as Warren, Kara Killmer as Sylvie Brett -- (Photo by: Adrian S Burrows Sr/NBC)

Is Sylvie Brett leaving Chicago Fire season 11?

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)

Why did Brett and Casey break up on Chicago Fire?

CHICAGO FIRE -- "The Magnificent City of Chicago" Episode 1022 -- Pictured: Kara Killmer as Sylvie Brett -- (Photo by: Adrian S. Burrows Sr./NBC)

Chicago Fire: Kara Killmer teases return of ‘old love’ interest

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

When is Brett coming back to Chicago Fire?