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 Jesse Lee Soffer Detective Jay Halstead Actor Marina Squerciati Officer Kim Burgess Actor Amy Morton Desk Sgt. Trudy Platt Actor Tony Crane Jimmy Sanguinetti Guest Star Markie Post Barbara 'Bunny' Fletcher Guest Star Nick Wechsler Kenny Rixton Guest Star Jamila Velazquez Emily Vega Guest Star Chris Agos ASA Steve Kot Guest Star Ben Kass Vincent Williams 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