After years of rumors and guest appearances, Jesse Spencer is officially returning to Chicago Fire as Matthew Casey — full-time — for Season 15 in 2026.
“I’m ready,” Spencer shared, smiling. “I miss the cast, I miss the energy, and honestly… I miss Casey.” Fans immediately erupted online, with “CASEY IS BACK” trending worldwide.
Sources reveal that Casey will rejoin Firehouse 51 in the premiere, kicking off a “major shift” in the firehouse’s leadership. His return is expected to shake up long-running relationships, including teasing possible developments with Sylvie Brett.
Behind the scenes, cast members, including Taylor Kinney, have expressed excitement over Spencer’s comeback. Showrunners view his return as more than nostalgia — it’s a strategic move to restore the series’ heart and stability.
Spencer concluded with a simple promise that thrilled fans:
“Tell Firehouse 51 I’ll see them soon.”
Season 15 marks the official return of one of the franchise’s most iconic leaders.
