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 Gus Halper Oliver Tuxhorn Guest Star Philip Winchester Peter Stone Guest Star Kevin Kane Mike Sorensen Guest Star Monica Raymund Gabriela Dawson Guest Star Monica Barbaro Anna Valdez Guest Star Eric C. Lynch Officer Dichter Guest Star Paul Perroni Ken Amis Guest Star Markie Post Barbara 'Bunny' Fletcher Guest Star Paul Anthony Stewart Dominick Cooke Guest Star Jeremy Ratchford Jim Guest Star Annabel Armour Judge Fern Sikorsky Guest Star Chelsea Morgan Sloane Tuxhorn Guest Star Todd Courson Kirby Dexhart 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