Jason Beghe Sergeant Hank Voight Actor Sophia Bush Detective Erin Lindsay Actor Patrick Flueger Office 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 Offiver Kim Burgess Actor Isaac White D'Anthony Guest Star Melissa Sagemiller Detective Julia Willhite Guest Star David Eigenberg Christopher Herrmann Guest Star Monica Raymund Gabriela Dawson Guest Star Arturo Del Puerto Adres Diaz Guest Star Lauren German Leslie Shay Guest Star Yuri Sardarov Brian Zvonecek Guest Star Amy Morton Trudy Platt Guest Star Robert Wisdom Ron Perry Guest Star Kurt Naebig Lt. Bruce Belden Guest Star David Aron Damane Maurice Owens Guest Star Zach Garcia Diego Dawson Guest Star Julian Parker Xavier Greene Guest Star Kathy Scambiatterra Ruth Dwyer Guest Star Erik Hellman Dr. Alec Willhite Guest Star John Turk Training Officer 1 Guest Star C. Anthony Jackson Training Officer 2 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