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 Nick Gehlfuss Will Halstead Guest Star Laura Wiggins Juliana Parks Guest Star Marceline Hugot Geraldine Crane Guest Star Stephanie Fantauzzi Abby McSweeney Guest Star Marcus Choi Daniel Jung Guest Star Rachel DiPillo Sarah Reese Guest Star Celeste M Cooper Medical Examiner 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