The One Chicago midseason finales on December 8, 2021, left fans buzzing with excitement and questions as Chicago Fire, Chicago Med, and Chicago PD paused for a winter break. For Chicago Fire viewers, the spotlight was on one of the season’s most emotional developments: Matt Casey’s (Jesse Spencer) unexpected departure.
Casey’s move to Portland, Oregon, to care for his late best friend’s sons, Ben and Griffin, shocked fans and raised many questions. Chief among them: what would happen to his burgeoning relationship with Sylvie Brett (Kara Killmer)? Affectionately dubbed “Brettsey” by fans, the pair had only recently solidified their romance. Would Casey’s departure mark the end of their love story?
Fortunately, Chicago Fire showrunner Derek Haas has provided some much-needed clarity—and reassurance.
Brettsey’s Future: Strong, Despite the Distance
Speaking to TV Guide, Haas confirmed that Brettsey isn’t going anywhere, at least for now.
“Yeah, they’re solid,” Haas shared. “She’s going to go see him at some point in the season.”
While a long-distance relationship inevitably brings challenges, Haas made it clear that the couple’s bond remains strong. Fans who’ve rooted for Brett and Casey since the early days can breathe a sigh of relief: the show won’t be breaking them up anytime soon.
What’s Next for Brett? A Family Reunion on the Horizon
Haas didn’t just tease Brettsey’s continued romance—he also hinted at a storyline involving Brett’s half-sister, Amelia. This arc was delayed due to COVID restrictions that previously prevented young actors from appearing on set, but with those limitations eased, Brett and her stepfather Scott will get a chance to reconnect.
This storyline revisits Brett’s emotionally charged Season 8 reunion with her biological mother, Julie, who tragically passed away during childbirth. Amelia, named after Brett’s mother, has since been raised by Scott, offering a poignant thread of hope and redemption. According to Haas, an upcoming episode will delve into these relationships, providing both closure and new opportunities for character growth.
The Impact of Casey’s Departure
Matt Casey’s decision to leave Chicago has far-reaching implications for Firehouse 51. As one of the show’s central figures since Season 1, his absence reshapes both professional dynamics and personal relationships.
On a professional level, Firehouse 51 faces a shift in leadership as someone steps up to fill the void Casey left behind. On a personal level, his departure introduces unique challenges to his relationship with Brett. Haas acknowledged these complications, but reassured fans that the couple’s connection is deep enough to endure the trials of long-distance love.
What to Expect When Chicago Fire Returns
When Chicago Fire resumes its tenth season, fans can look forward to heartfelt moments between Brett and Casey, as well as an emotional exploration of Brett’s family ties. While the road ahead may not be smooth, the promise of these storylines ensures that viewers will stay invested in the journey of their favorite characters.
For now, Brettsey shippers can rest easy: love is still in the air, even if Portland feels a world away from Chicago.
