Jesse Spencer Matthew Casey Actor Taylor Kinney Kelly Severide 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 Dora Madison Jessica "Chili" Chilton Actor Steven R McQueen Jimmy Borrelli Actor Miranda Rae Mayo Stella Kidd Guest Star Jenny Mollen Detective Bianca Holloway Guest Star Lauren Stamile Susan Weller Guest Star Barbara Eve Harris Emma Crowley Guest Star Randy Flagler Capp Guest Star Nick Gehlfuss Will Halstead Guest Star Maxwell Jenkins J.J. Guest Star Michael Weber Al Nelson Guest Star Jaclyn Hennell Mary Holloway Guest Star Violet Hicks Sally Guest Star Anthony Ferraris Tony 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 Fred Berner Director Gwen Sigan Writer