Chicago Fire - Characters & Cast

Driven by a need to prove himself outside of his father's influence and a deep-seated instinct to protect those who cannot protect themselves.

Initially a reckless "ladies' man" dealing with a career-threatening injury and the shadow of his father's legacy, Severide evolves into a dedicated husband and a mentor who prioritizes the safety of his squad above his own adrenaline-seeking impulses.

To provide for his large family and ensure the next generation of firefighters understands the honor of the badge.

Moving from a hot-headed firefighter constantly chasing failed business schemes to a wise Lieutenant and father figure, Herrmann becomes the soul of the firehouse, guarding its traditions and values.

To redeem himself for past mistakes and honor the memory of his best friend, Otis.

Starting with a dark past involving his brother's gang affiliation, Cruz works his way into the elite Rescue Squad 3, eventually becoming a devoted father and a pillar of stability for the firehouse.

Protecting the rights and benefits of his fellow firefighters while maintaining his own place in the 51 family.

Often the source of comic relief, Mouch's journey includes multiple brushes with death and retirement, leading him to realize that his true purpose is serving as the firehouse's legal and emotional anchor.

To be the dependable wingman for Severide and maintain the camaraderie of the Squad.

As a mainstay of Squad 3, Capp represents the unsung stability of the firehouse, providing consistent support and levity through over a decade of service without losing his sense of humor.