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 Miranda Rae Mayo Stella Kidd Actor Kim Delaney Severide's Mom Guest Star Treat Williams Benny Severide Guest Star Damon Dayoub Cordova Guest Star Steve Casillas Gregg Hill Guest Star Randy Flagler Capp Guest Star DuShon Monique Brown Connie Guest Star Michael Hayden Chief Huffhines Guest Star Anthony Ferraris Tony Guest Star Iselle Slome Jamie Wellborne Guest Star Jake West Franklin Barlow 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