Matthew Casey
Kelly Severide
Peter Mills
Gabriela Dawson
Chief Wallace Boden
Christopher Herrmann
Joe Cruz
Brian "Otis" Zvonecek
Randy "Mouch" McHolland
Kara Killmer
Sylvie Brett

Charlie Barnett

Peter Mills

Charlie Barnett stars as Peter Mills, who has found his footing in his third year in the CFD, on NBC's drama "Chicago Fire."

A graduate of the Juilliard School, he began performing in his hometown of Sarasota, Florida, at the age of seven in opera and musical theater productions.

On the big screen, Barnett has a supporting role in "Men in Black 3," with Will Smith and Josh Brolin. Other features include "Gayby," which premiered last year at the South by Southwest Film Festival; "The Happy Sad," a tangled love story; and "Private Romeo," a modern take on Romeo and Juliet.

On television, he has guest-starred on "Law & Order: SVU" and "Law & Order: CI."

Barnett, who was raised on a sailboat for most of his young life, still enjoys sailing, as well as classic cars. He is also a strong advocate for volunteer work.

He is single and resides in Los Angeles, though his heart is in New York.