Jesse Spencer Matthew Casey Actor Taylor Kinney Kelly Severide Actor Charlie Barnett Peter Mills Actor Monica Raymund Gabriela Dawson Actor Lauren German Leslie Shay Actor Eamonn Walker Chief Wallace Boden Actor David Eigenberg Christopher Herrmann Actor Joe Minoso Joe Cruz Actor Yuri Sardarov Brian "Otis" Zvonecek Actor Christian Stolte Randy "Mouch" McHolland Actor Daisy Betts Rebecca Jones Guest Star Scott Jaeck Firefighters' Attorney Guest Star W. Earl Brown Dave Bloom Guest Star Randy Flagler Capp Guest Star Erik Hellman Dr. Alec Willhite Guest Star Stacy Stoltz Mrs. Brooker Guest Star Derek Haas Executive Producer Michael Brandt Executive Producer Jeffrey Nachmanoff Executive Producer Dick Wolf Executive Producer Peter Jankowski Executive Producer Danielle Gelber Executive Producer Jann Turner Director Andrea Newman Writer