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 Charlie Barnett Peter Mills Guest Star Stella Maeve Nadia Decotis Guest Star Michael James Reed Gordon Tannenbaum Guest Star Kara Killmer Sylvie Brett Guest Star Armand Schultz Alderman Colin Becks Guest Star Michael Park Asher Roslyn Guest Star Kevin J. O'Connor Commander Fischer Guest Star India de Beaufort Layla Roslyn Guest Star Fiona Robert Hayden Tannenbaum Guest Star Caroline Neff Olive Morgan Guest Star Elizabeth Laidlaw Liza Tannebaum Guest Star Amro Salama Roberts Guest Star Connor Del Rio Jordan Biggs 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