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 Jason Beghe Hank Voight Guest Star Elias Koteas Alvin Olinsky Guest Star Jeff Hephner Jeff Clarke Guest Star Larisa Polonsky Zoya Guest Star Brittany Curran Katie Nolan Guest Star Jeff Lima Leon Cruz Guest Star Mena Suvari Isabella Guest Star Michelle Forbes Gail McLeod Guest Star Jon Seda Antonio Dawson Guest Star Randy Flagler Capp Guest Star Jacqueline Williams Officer Becerra Guest Star Peter DeFaria Officer Tackett 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 Sanford Bookstaver Director Michael Gilvary Writer