Dermot Mulroney’s run as Battalion Chief Dominic Pascal on Chicago Fire ended with the Season 15 premiere, which aired Oct. 8, 2026. Showrunner Victor Teran confirmed the departure in an interview, saying Pascal’s limited screen time still carried major weight for the firehouse.
“We only have the one episode with him I’m sad to report. It’s just the premiere. But he plays a very critical role,” Teran said, according to Deadline.
The Main Development
Mulroney played Pascal for two seasons before exiting in the Season 15 opener. Teran did not detail the specific way Pascal leaves the show, but confirmed the character’s final scenes carry consequences for the rest of the firehouse.
In his last moments onscreen, Pascal offers Severide advice about managing two jobs at once, a warning tied directly to the choice Severide makes earlier in the episode.
What It Means For Fans
With Pascal gone, Firehouse 51 enters uncharted territory. Teran pointed out the significance for longtime viewers of the NBC drama.
“For the first time in 15 seasons, there’s not going to be a Chief in the house. Severide is really going to be leading things, and that’s a new thing,” Teran said.
In the premiere, Severide takes the Chief of Firehouse 51 job instead of an inspector position he was also considering. He plans to keep working as a fire inspector privately at the same time, an effort connected to helping Joe following the warehouse fire that closed out Season 14.
Pascal’s advice to Severide centers on the risk of juggling both roles, a storyline Teran indicated will carry forward now that Pascal is no longer part of the cast.
Background And Context
Mulroney reflected on his two seasons with the show in comments to Deadline. “Loved every minute of it. Became friends with this incredible crew of people,” he said, adding that the team “gave it our all for two seasons.”
Teran’s confirmation that Pascal is written off closes out a run that began two seasons prior, though the specifics of how the character exits the narrative have not been detailed beyond his role in the premiere.
What’s Next
Chicago Fire moves forward in Season 15 with Severide as the firehouse’s top authority for the first time in the show’s history, according to Teran. How Severide balances leading the house while working privately to help clear Joe remains a thread to follow as the season continues on NBC.
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