# Chicago Fire cast and production turnover 2026

> Live situation record from CLSTR: https://clstr.news/situations/chicago-fire-cast-turnover-2026
> Updated: 2026-08-21T16:05:30.000Z. Sources: 15. Developments: 3.

In late July 2026, industry reports announced that Dermot Mulroney would exit NBC’s drama Chicago Fire early in its 15th season, with his storyline set to conclude after the season-15 premiere on 7 October 2026. The announcement also noted the upcoming departure of original cast member Joe Miñoso and the addition of new firefighter Da’Vinchi.

A few days later, at the Flashback Weekend Chicago Horror Convention, Mulroney personally confirmed the exit, saying his character would be written off after appearing in a single episode of season 15 and expressing that it was “bitter to have to leave.” He reiterated the broader cast changes, including Miñoso’s exit and Da’Vinchi’s new role as firefighter candidate Marcus Burke.

Further casting developments for season 15 include the addition of Matthew Daddario, who will join the cast as a firefighter candidate. The upcoming season also marks a leadership change, with Victor Teran (also referred to as Victor Terharn) taking over as showrunner and executive producer, replacing Andrea Newman after three seasons. The new season is expected to address the cliffhanger from season 14 involving a major structure fire.

## Claims

- Matthew Daddario will join 'Chicago Fire' Season 15 as a firefighter candidate. (corroborated by 3 sources)
- Victor Terharn will serve as showrunner and executive producer for Season 15. (corroborated by 2 sources)
- 'Chicago Fire' is scheduled to return on October 7. (single source)
- Da'Vinchi has joined the cast as a series regular playing Marcus Burke. (single source)
- Dermott Mulroney will exit the series after one episode in Season 15. (single source)
- Joe Minoso will leave the series after a handful of episodes in the upcoming season. (single source)

## Timeline

### 2026-08-21: Matthew Daddario joins 'Chicago Fire' cast for Season 15

Matthew Daddario joins the cast of ‘Chicago Fire’ as a firefighter candidate for Season 15, which is set to premiere on October 7 on NBC.

5 sources. https://clstr.news/cluster/matthew-daddario-joins-chicago-fire-cast-for-season-15

### 2026-08-04: Dermot Mulroney Announces Exit from NBC's 'Chicago Fire' After Two Seasons

Dermot Mulroney confirmed his departure from NBC's 'Chicago Fire' after a single episode in season 15, calling it bitter to leave. He noted other cast exits and a new addition as the show heads to October.

2 sources. https://clstr.news/cluster/dermot-mulroney-announces-exit-from-nbcs-chicago-fire-after-two-seasons

### 2026-07-31: Dermot Mulroney Exits 'Chicago Fire' Ahead of Season 15 Premiere

Dermot Mulroney will leave 'Chicago Fire' early in season 15, which premieres Oct 7, 2026; the show also sees Joe Miñoso exit, a new showrunner, and fresh cast additions.

10 sources. https://clstr.news/cluster/dermot-mulroney-to-exit-nbcs-chicago-fire-early-in-season-15

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Cite as: Chicago Fire cast and production turnover 2026. CLSTR, https://clstr.news/situations/chicago-fire-cast-turnover-2026