Major Shake-Up: Who’s In And Who’s Out? The Definitive Chicago Fire Cast List For 2024–2025

The landscape of Firehouse 51 is undergoing its most significant transformation in years, as the cast of the TV show Chicago Fire prepares for its fourteenth season. As of December 2025, the beloved NBC drama is confirming major departures and welcoming a new face into a critical leadership role, ensuring the drama remains fresh and unpredictable. Fans are bracing for a wave of emotional goodbyes, particularly the exits of key characters who have become staples of the One Chicago franchise.

This comprehensive guide details the full current cast, provides in-depth biographies of the leading actors, and confirms the heartbreaking departures that will redefine the crew of Truck 81, Squad 3, and Ambulance 61. The latest updates for Season 14 confirm that the series continues its tradition of high-stakes drama both on and off the job, with the shifting dynamics at Firehouse 51 set to be the central focus.

The Core Cast of Chicago Fire: In-Depth Biographies and Roles

The success of Chicago Fire rests on the shoulders of its long-running ensemble cast, who have portrayed the dedicated first responders of Firehouse 51 for over a decade. Here is a look at the returning main actors and their essential roles for the upcoming season, including the highly anticipated new addition.

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Taylor Kinney as Lieutenant Kelly Severide (Squad 3)

• Full Name: Taylor Jackson Kinney
• Born: July 15, 1981 (Lancaster, Pennsylvania)
• Role: Lieutenant Kelly Severide, the fearless and often reckless leader of the Rescue Squad. His character arc has been defined by his complex personal life, his marriage to Stella Kidd, and his expertise as a fire investigator.
• Career Highlights: Before becoming a cornerstone of the One Chicago universe, Kinney was known for playing Mason Lockwood in The Vampire Diaries. His film credits include roles in the Oscar-winning film Zero Dark Thirty and the romantic comedy The Other Woman. Kinney’s extended absence in Season 11 and his subsequent return for Season 12 cemented his status as the show's leading man.

Miranda Rae Mayo as Lieutenant Stella Kidd (Truck 81)

• Full Name: Miranda Rae Mayo
• Born: 1990 (Fresno, California)
• Role: Lieutenant Stella Kidd, a determined and ambitious firefighter who rose through the ranks to become Lieutenant of Truck 81. She is married to Kelly Severide, forming one of the show's most popular couples.
• Career Highlights: Mayo joined the series in Season 4 and quickly became a fan favorite. Her previous television work includes recurring roles on Pretty Little Liars, The Game, and the short-lived prime-time soap opera Blood & Oil, where she played Lacey Briggs.

Dermot Mulroney as Chief Dom Pascal (Battalion Chief)

• Full Name: Dermot Patrick Mulroney
• Born: October 31, 1963 (Alexandria, Virginia)
• Role: Chief Dom Pascal, the new Battalion Chief replacing the beloved Chief Boden. His arrival is set to shake up the hierarchy and dynamics at Firehouse 51, bringing a fresh, perhaps challenging, leadership style.
• Career Highlights: Mulroney is a veteran actor known for his versatile roles in Hollywood, often in romantic comedies like My Best Friend’s Wedding and dramas such as August: Osage County. His extensive filmography provides a significant boost of star power and topical authority to the cast. He is also an accomplished cellist.

David Eigenberg as Lieutenant Christopher Herrmann (Engine 51)

• Full Name: David Eigenberg
• Born: May 17, 1964 (New York, New York)
• Role: Lieutenant Christopher Herrmann, a veteran firefighter, co-owner of Molly’s Pub, and a devoted family man. His grounded, emotional presence provides much of the show’s heart and comic relief.
• Career Highlights: Eigenberg is instantly recognizable for his long-running role as Steve Brady in Sex and the City and its spin-off, And Just Like That.... He has been a main cast member of Chicago Fire since the pilot episode.

Joe Minoso as Firefighter Joe Cruz (Squad 3)

• Full Name: Joe Minoso
• Born: September 25, 1978 (Bronx, New York)
• Role: Firefighter Joe Cruz, a member of Squad 3, a close friend to Severide, and the inventor of the 'Slamigan' tool. His character represents the working-class hero of the firehouse.
• Career Highlights: Minoso has been with the show since Season 1. He has also appeared in other Dick Wolf productions, including *Chicago P.D.* and *Chicago Med*, a testament to his integral role in the One Chicago universe.

Christian Stolte as Firefighter Randy 'Mouch' McHolland (Truck 81)

• Full Name: Christian Stolte
• Born: October 16, 1962 (St. Louis, Missouri)
• Role: Firefighter Randy 'Mouch' McHolland, a seasoned, often lazy, but deeply loyal firefighter on Truck 81. His nickname comes from his habit of being a "man on the couch." He is married to Sergeant Trudy Platt from Chicago P.D.
• Career Highlights: Stolte is a prolific character actor with roles in films like Public Enemies and Law Abiding Citizen. His long tenure on Chicago Fire makes him one of the show's longest-serving and most beloved cast members.

Hanako Greensmith as Paramedic Violet Mikami (Ambulance 61)

• Full Name: Hanako Greensmith
• Role: Paramedic Violet Mikami, the witty and highly skilled Paramedic in Charge of Ambulance 61. Her character has been a central figure in the recent seasons, navigating professional ambition and personal heartbreak.
• Career Highlights: Greensmith joined the show in Season 8 and was promoted to a series regular in Season 10. She has quickly become a fan favorite, especially for her professional partnership and personal relationships within the firehouse.

The Shocking Departures: Three Main Actors Exit Ahead of Season 14

In a massive cast shake-up that has sent shockwaves through the One Chicago fandom, three main cast members have confirmed their exits from the series. These departures mark a significant turning point for the show, leaving major gaps in the Firehouse 51 lineup, particularly on Truck 81 and Squad 3.

Daniel Kyri as Firefighter Darren Ritter (Engine 51)

Daniel Kyri, who played Firefighter Darren Ritter, is one of the confirmed departures. Ritter was introduced in Season 7 and became an important character, known for his earnest nature and his journey as an openly gay firefighter on Engine 51. His character's steady presence and close friendship with Lieutenant Herrmann will be deeply missed. Kyri’s exit was announced in April 2025, ahead of the series' 14th season.

Jake Lockett as Firefighter Sam Carver (Truck 81)

Jake Lockett, who played Firefighter Sam Carver, is also leaving the series. Carver was introduced as a new addition to Truck 81 and quickly developed a complicated dynamic with Lieutenant Kidd, as they shared a history from the Fire Academy. His character's departure is expected to create a significant vacancy on Kidd's truck and impact the overall crew dynamic.

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Michael Bradway as Firefighter Candidate Jack Damon

Michael Bradway, who played Firefighter Candidate Jack Damon, is the latest actor to announce his departure. Damon was introduced late in Season 12 as Kelly Severide's previously unknown half-brother. His brief but impactful presence, which created a compelling new storyline for Severide, will be cut short as he exits before Season 14.

The simultaneous exit of three major supporting characters—Ritter, Carver, and Damon—suggests a dramatic narrative reset for Chicago Fire Season 14. This is a crucial development for the show, indicating that the writers are ready to introduce new storylines and fresh faces to the Firehouse 51 family.

The Future of Firehouse 51: New Dynamics and LSI Entities

The upcoming season will not only deal with the emotional fallout of these departures but will also introduce new dynamics that will shape the show's future. The introduction of Dermot Mulroney as Chief Dom Pascal is the most significant new entity, filling the void left by Wallace Boden's (Eamonn Walker) move to Deputy Commissioner. Pascal’s leadership style will undoubtedly clash with the established culture of the firehouse, particularly with veterans like Herrmann and Severide.

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The remaining core cast—the "Severide and Kidd" power couple, the steady leadership of Herrmann, the grounded presence of Cruz, and the medical expertise of Violet Mikami—will be tasked with maintaining the heart of Firehouse 51. The show will continue to explore topical authority in firefighting, rescue operations, and paramedic work, while also focusing on the personal lives of its heroes, a key element that has kept the One Chicago franchise thriving for over a decade. The vacant spots on Truck 81 and Engine 51 will likely be filled by new firefighter candidates, setting the stage for new rivalries, friendships, and romances in the world of Chicago Fire.