Prepare to see some changes when "Chicago Fire" returns this week.
The NBC series will see multiple exits amid its 15th season, set to premiere Oct. 7. The departures include one actor who has been with the procedural firestation drama since Season 1, and a fan-favorite star who said of his exit, "We gave it our all."
"Chicago Fire," which has been on air since 2012, has seen major shifts over the years, including the 2021 exit of series lead Jesse Spencer, who played Matt Casey, and Eamonn Walker, who played Chief Wallace Boden.
Here's who else will soon make their departures, and who will return amid new faces looking to join the ranks of Firehouse 51.
Dermot Mulroney, Joe Minoso exiting 'Chicago Fire'
Dermot Mulroney will return early in Season 15 to conclude Chief Dom Pascal's storyline before
fully leaving the series after two seasons, Deadline reported on July 31, citing unnamed sources. The "My Best Friend's Wedding" actor later spoke out about his departure while appearing at a convention, as seen in fan video. The actor said the show's writers "gave me incredibly challenging scenes" throughout his brief time on the show, which ended when he finished filming in August.
"We gave it our all for two seasons," Mulroney said. "They wrote an incredible storyline that put me as an actor on high challenge, so I loved every minute of it. Sad to see it go."
Days before revealing Mulroney's departure, Deadline and Variety reported longtime star Joe Miñoso, who has played Joe Cruz since the series' pilot, would exit. The outlets reported the actor would also appear in early episodes of Season 15 to wrap his storyline. Season 14 ended on a cliffhanger after Cruz and several members of Firehouse 51 became trapped inside a burning storage facility. The finale also appeared to set up a hopeful new chapter for Cruz after he and wife Chloe (Kristen Lee Gutoski) learn they are expecting twins.
'Chicago Fire' star Taylor Kinney staying put amid new hire
Series leads Taylor Kinney and Miranda Rae Mayo are locked in to return to the series, Deadline reported back in May. Kinney has been with the series since its pilot as fire captain Kelly Severide, while Mayo joined in Season 4 as Lieutenant Stella Kidd.
Several also stars set to return include Randall "Mouch" McHolland (Christian Stolte), Christopher Herrmann (David Eigenberg), Violet Mikami (Hanako Greensmith) and Lyla Novak (Jocelyn Hudon).
New 'Chicago Fire' candidates include 'BMF,' 'Shadowhunters' stars
Meanwhile, "BMF" star Da'Vinchi is set to join the show as a series regular, Deadline announced July 23 and the actor, 30, shared on his Instagram. The "All American" star, born Abraham D. Juste, will play Marcus Burke, a funny but defiant firefighter candidate at Firehouse 51.
And "Shadowhunters" star Matthew Daddario is on the Season 15 Episode 1 cast list as McCaffrey, with Deadline reporting the actor will appear as a firefighter candidate.
In August, Da'Vinchi shared several photos from the "Chicago Fire" set, including a shot with Daddario and Brandon Larracuente, who will return as Vasquez.
How to watch 'Chicago Fire'
"Chicago Fire" Season 15 will air Wednesdays at 9 p.m., beginning with the premiere Wednesday, Oct. 7 on NBC. Episodes will air on Peacock the following day.
Contributing: Charlie Carballo, USA TODAY
This article originally appeared on USA TODAY: 'Chicago Fire' Season 15 cast – Who's back, exiting amid premiere
