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 Richard Roundtree Wallace Boden, Sr. Guest Star Robert Knepper Adrian Gish Guest Star Edwin Hodge Rick Newhouse Guest Star Annika Boras Captain Lynette Cunningham Guest Star Ellen Woglom Megan Shay Guest Star Randy Flagler Capp Guest Star Marina Squerciati Kim Burgess Guest Star Brian Geraghty Sean Roman Guest Star Jon Seda Antonio Dawson Guest Star William Smillie Hadley Guest Star Anthony Ferraris Tony Guest Star Alan Wilder Marvin Watkins 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 Arthur W. Forney Director Jill Weinberger Writer