Jason Beghe Sergeant Hank Voight Actor Sophia Bush Detective Erin Lindsay Actor Patrick Flueger Officer Kyle Ruzek Actor LaRoyce Hawkins Officer Kevin Atwater Actor Archie Kao Detective Sheldon Jin 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 Josh Segarra Justin Voight Guest Star Robin Weigert Voight's Handler Guest Star Amy Morton Trudy Platt Guest Star America Olivo Laura Dawson Guest Star Joe Reegan Joseph Catalano Guest Star Emily Peterson Wendy Guest Star Mark Vallarta Alessio Colo Guest Star Zach Garcia Diego Dawson Guest Star Steve Herson CTA Supervisor Leonard Guest Star Jeff Rogers Uniform Officer Guest Star Sal Velez Jr. Cowboy 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