Jason Beghe Sergeant Hank Voight Actor Sophia Bush Detective Erin Lindsay Actor Patrick Flueger Officer Kyle Ruzek Actor LaRoyce Hawkins Officer Kevin Atwater Actor Elias Koteas Detective Alvin Olinsky Actor Jon Seda Detective Antonio Dawson Actor Jesse Lee Soffer Detective Jay Halstead Actor Marina Squerciati Officer Kim Burgess Actor Amy Morton Desk Sgt. Trudy Platt Actor Brian Geraghty Officer Sean Roman Actor Markie Post Barbara 'Bunny' Fletcher Guest Star Yuri Sardarov Brian Zvonecek Guest Star Nick Gehlfuss Will Halstead Guest Star Samuel Hunt Greg Gerwitz Guest Star Madison McLaughlin Michelle Sovana Guest Star Derek Phillips Damien Boyd Guest Star John Sharian Kurt Hollister Guest Star Ira Amyx Richard Dolan Guest Star Will Clinger Vaughn Bash Guest Star Stephanie Cotton Rochelle Dolan Guest Star Richard Gallagher Darren Woodhull Guest Star Dick Wolf Executive Producer Matt Olmstead Executive Producer Michael Brandt Executive Producer Derek Haas Executive Producer Peter Jankowski Executive Producer Danielle Gelber Executive Producer Joe Chappelle Executive Producer