Kara Killmer is closing the curtain on a nearly decade-long chapter as Chicago Fire fan-favorite Sylvie Brett. Since joining the series in 2014, Brett has been a staple at Firehouse 51, winning hearts with her compassion, strength, and emotional resilience. Now, as Season 12 unfolds, Brett’s journey is coming to a heartfelt conclusion — complete with a long-awaited wedding and a fresh start with her true love, Matt Casey (Jesse Spencer).
A Natural Goodbye
In an interview with TV Insider, Killmer reflected on why now felt like the right time to say goodbye. “This is definitely the natural conclusion for Sylvie’s character arc,” she said. Brett’s romantic storyline has seen more than its share of heartbreak, including a failed engagement and lingering doubts about love. But all of that comes full circle when she finally ties the knot with Casey in an episode titled “Port in the Storm.”
The couple will start their new life together in Portland, Oregon, far from the familiar streets of Chicago. And yes — their quirky wedding venue? A fish store. But for Killmer, the location hardly matters. “It’s such a satisfying ending for my character,” she said, emphasizing the joy of seeing Brett get the happy ending she deserves.
A Celebration to Remember
The final scene Kara Killmer filmed as Brett wasn’t one of tearful goodbyes — it was a party. Specifically, the reception at Molly’s Bar, a longtime cornerstone of One Chicago. “It was truly just one big party,” she recalled. “I got to wear a gorgeous dress and stand next to a tower of cake. It doesn’t get much better than that.”
It was a fitting send-off for a character who brought joy and emotional depth to the series.
Will Brett Ever Return?
Though Brett is officially off to Portland with Casey and their adopted daughter, Julia, Killmer hasn’t ruled out a return to Chicago Fire. Jesse Spencer’s own arc as Casey proves that departures don’t always mean the end — he’s made several guest appearances since leaving the main cast.
Killmer seems open to a similar setup, with one humorous but heartfelt condition: “If Sylvie makes an appearance at 51 again, she better be pregnant,” she joked. Having already embraced motherhood through adoption, Killmer thinks it’s time for Brett to grow her family the old-fashioned way.
The Door Remains Open
Though fans are sad to see Brett leave Firehouse 51, her exit isn’t marred by tragedy — it’s a victory lap. A rare thing in television: a well-earned happy ending. And for Kara Killmer, this isn’t necessarily the end of the road. “Anytime they want to ask, I will be there, for sure,” she said. “The door is wide open for me.”
So while Chicago may be losing one of its best paramedics for now, Sylvie Brett’s story might not be over just yet — it’s just taking a different route home.
