Jesse Spencer Matthew Casey Actor Taylor Kinney Kelly Severide Actor Charlie Barnett Peter Mills Actor Monica Raymund Gabriela Dawson 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 Kara Killmer Sylvie Brett Actor Lauren German Leslie Shay Guest Star Kenny Johnson Tommy Welch Guest Star Melissa Ponzio Donna Robbins Guest Star Edwin Hodge Rick Newhouse Guest Star Randy Flagler Capp Guest Star Gordon Clapp Chaplain Orlovsky Guest Star Amy Morton Trudy Platt Guest Star William Smillie Hadley Guest Star Josh Bywater Rodger Guest Star Anthony Ferraris Tony Guest Star Jim Saltouros Olson Guest Star Glenn Stanton Molina Guest Star Merrick Robison Bruno Guest Star Derek Haas Executive Producer, Writer Michael Brandt Executive Producer, Writer Jeffrey Nachmanoff Executive Producer Dick Wolf Executive Producer Peter Jankowski Executive Producer Danielle Gelber Executive Producer Joe Chappelle Director