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 Annika Boras Captain Lynette Cunningham Guest Star Bree Williamson Beth Guest Star Olivia Horton Toni Jessup Guest Star Liz E. Morgan Celia Guest Star Richard Roundtree Wallace Boden, Sr. Guest Star Randy Flagler Capp Guest Star Anthony Ferraris Tony Guest Star Matthew Furlin Homeless Man Guest Star Ty Olwin Christopher Guest Star Mia Park Nurse 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 Reza Tabrizi Director Matt Olmstead Writer Michael A. O'Shea Writer