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 Kenny Johnson Tommy Welch Guest Star Melissa Ponzio Donna Robbins Guest Star Vedette Lim Devon Guest Star Edwin Hodge Rick Newhouse Guest Star Randy Flagler Capp Guest Star Jon Seda Antonio Dawson Guest Star DuShon Monique Brown Connie Guest Star Duane Sharp Captain Guest Star Chris Boykin Foreman 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 Jean de Segonzac Director Andrea Newman Writer