An End of an Era for Firehouse 51
After nine unforgettable seasons, Chicago Fire fans have said goodbye to one of the show’s most beloved characters. Kara Killmer, who brought warmth, strength, and humanity to paramedic Sylvie Brett, has officially stepped away from the NBC drama, closing a chapter that began nearly a decade ago.

Her departure, sealed with Sylvie’s heartfelt wedding to Matt Casey (Jesse Spencer), was both beautiful and bittersweet — a fitting conclusion to a character who had grown from a nervous rookie to a confident and compassionate leader at Firehouse 51.

“I Grew Up With Sylvie Brett”
Reflecting on her exit, Killmer shared emotional words that captured just how deeply the role became part of her life. “I grew up with Sylvie Brett,” she said, describing the experience of living in the character’s shoes for so long.

In an interview with TVLine, she elaborated: “I have loved this character for so long, and I have loved getting to tell her story. It’s been an honor. There have been a lot of tears, but there have also been a lot of laughs and a lot of joy.”

Over the years, Killmer often shared glimpses of her life on set through Instagram — candid photos, behind-the-scenes laughs, and touching tributes to her One Chicago family. Though she hasn’t posted one single farewell message, her reflections have made it clear that leaving wasn’t easy. “It’s hard to say goodbye to a character you’ve lived with for so long,” she wrote. “Sylvie Brett has taught me so much, and I’m so grateful for every moment.”

Why Kara Killmer Left Chicago Fire
The decision to write Sylvie out of the show came naturally, both for Killmer and the writers. After years of heartbreak, duty, and devotion, Sylvie finally found her happiness — moving to Portland to begin a new life with her great love, Matt Casey.

“It felt like the right time for Sylvie’s story to conclude,” Killmer explained. “She found her true happiness, and it was a beautiful way to send her off.”

For Killmer, the farewell opens doors to new opportunities, both professionally and personally. After nine seasons of intense filming, she leaves with a legacy of strength and authenticity — and the respect of her castmates and fans alike.

Castmates Say Goodbye
The emotions behind Killmer’s departure were felt across the Chicago Fire cast.

• David Eigenberg (Christopher Herrmann) praised her professionalism and spirit on set, reflecting the same respect and affection their characters shared on screen.

• Miranda Rae Mayo (Stella Kidd), who shared countless scenes and heartfelt moments with Killmer, called her departure “the end of an era,” expressing gratitude for their friendship and sisterhood both on and off camera.

• Jesse Spencer (Matt Casey) made a touching return for Sylvie’s farewell, his presence serving as the perfect full-circle moment for the pair’s long-running love story.

A Legacy That Burns Bright
Sylvie Brett’s journey has been one of courage, empathy, and quiet resilience. From navigating grief and trauma to finding love and self-acceptance, she embodied the emotional heart of Chicago Fire.

Kara Killmer’s portrayal turned Brett into a symbol of strength and compassion — the kind of hero that reminded viewers that bravery isn’t just found in the flames, but in the choices we make every day.

As she moves on to new adventures, one thing is certain: Firehouse 51 will never forget Sylvie Brett, and neither will the millions of fans who grew up with her too.