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 Li Jun Li Julie Tay Guest Star Barbara Eve Harris Emma Crowley Guest Star Jesse Spencer Matthew Casey Guest Star Marlyne Barrett Maggie Lockwood Guest Star Samuel Hunt Greg Gerwitz Guest Star James Andrew O'Connor Ted Berner Guest Star Stephanie Kurtzuba Detective Ricci Guest Star Caroline Neff Olive Morgan Voight Guest Star Ian Bedford Commander Fogel Guest Star Marilyn Bass Ally Berner Guest Star K.D. O'Hair Nikki Culler Guest Star Josh Odor Oscar Flynn 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