Michael Brandt Creator Derek Haas Creator, Executive Producer Matt Olmstead Creator Dick Wolf Creator, Executive Producer Jason Beghe Sergeant Hank Voight Actor Patrick Flueger Officer Adam Ruzek Actor LaRoyce Hawkins Officer Kevin Atwater Actor Amy Morton Desk Sgt. Trudy Platt Actor Jesse Lee Soffer Detective Jay Halstead Actor Tracy Spiridakos Detective Hailey Upton Actor Marina Squerciati Officer Kim Burgess Actor Ramona Edith Williams Makayla Burgess Guest Star Sharlene Cruz Mia Ramos Guest Star Erik LaRay Harvey Lew Atwater Guest Star Jefferson White Sean O'Neal Guest Star Samantha Steinmetz Dr. Kate Hammond Guest Star Michael Gaston Chief Patrick O'Neal Guest Star Caitlin Mehner Samantha Beck Guest Star Graham Harvey Callum Beck Guest Star Stephanie Reppen Catalina Torres Guest Star Robby Ramos Arturo Morales Guest Star Sara Bues ASA Chapman Guest Star Lee Tergesen Richard Beck Guest Star Ben Allen Gibson Junkie Guest Star Rick Eid Executive Producer Peter Jankowski Executive Producer Arthur W. Forney Executive Producer Eriq La Salle Executive Producer Gavin Harris Co-Executive Producer, Writer Chad Saxton Director Carl Seaton Director Bethany Rooney Director Lisa Robinson Director John Hyams Director Gwen Sigan Writer Scott Gold Writer Kevin Deiboldt Writer