A Bold New Look for Firehouse 51’s Chief
With Chicago Fire Season 14 just over a week away, Dermot Mulroney is giving fans plenty to talk about—before the show even premieres. The 61-year-old actor, who plays Battalion Chief Dom Pascal, debuted a striking new look while out and about in Chicago: a silver head of hair paired with a matching salt-and-pepper mustache that fans are calling a “cop-stache.”
Mulroney shared the transformation on Instagram on September 20, posting two photos for his followers. One photo featured him with sunglasses, the other without, posing in front of the iconic Marina Towers along the Chicago River. His caption read: “auditioning my cop-stache 🤷🏼♂️🤔 whadday’all think? It – and I – become available Spring of ‘26. entertaining all legitimate offers @paradigmtalentagency #goodcopbadcop.”
Fans Are Loving the Look
The reaction online was overwhelmingly positive. Fans flooded the comments, calling Mulroney “handsome” and praising the new mustache. One fan exclaimed, “Hello Handsome! ❤️” while another recognized the iconic Chicago location, writing, “Chicago represent! The Marina Towers on the Chicago River!”
Many viewers seemed excited about the potential of Mulroney embracing a new “cop” aesthetic for upcoming projects, though it remains unclear if the mustache will appear in Chicago Fire Season 14. For now, fans are simply enjoying the actor’s playful sneak peek at his transformation.
Returning to Firehouse 51
Mulroney joined Chicago Fire in Season 13 as Battalion Chief Dom Pascal and is set to return for the 14th season. While he didn’t sport a mustache in last season’s episodes, production on Season 14 is still underway, leaving room for surprises in the new episodes.
Alongside Mulroney, Taylor Kinney, Miranda Rae Mayo, and David Eigenberg are returning, maintaining continuity at Firehouse 51. Meanwhile, Michael Bradway will not be returning, and Daniel Kyri is set to appear for a limited run, recently sharing an emotional farewell to the series.
The Significance of the ‘Cop-Stache’
While fans have been gushing over Mulroney’s silver mustache for its aesthetic appeal, it also gives a glimpse into the actor’s versatility. Mulroney’s playful Instagram post suggests he’s ready to explore new roles and potentially lean into a police or law-enforcement character in future projects. The combination of his seasoned acting chops and a commanding “cop” look positions him perfectly for dramatic or procedural roles in 2026 and beyond.
Looking Ahead to Season 14
Chicago Fire Season 14 promises new storylines, challenges for Firehouse 51, and the return of key characters like Mulroney’s Dom Pascal. Whether or not his “cop-stache” makes it into the episodes remains to be seen, but fans can expect plenty of drama, action, and the camaraderie that makes the series a long-standing favorite.
Mulroney’s social media reveal has already sparked excitement and speculation, making it clear that viewers are eager to see how the veteran actor will continue to shape the dynamic at Firehouse 51.
