Main Characters Sergeant Hank Voight 220 main appearances Officer Kevin Atwater 219 main appearances Officer Kim Burgess 216 main appearances Officer Adam Ruzek 215 main appearances Detective Jay Halstead 190 main appearances Desk Sergeant Trudy Platt 175 main appearances Detective Hailey Upton 135 main appearances Detective Antonio Dawson 113 main appearances Detective Alvin Olinsky 106 main appearances Detective Erin Lindsay 84 main appearances Sean Roman 46 main appearances Officer Dante Torres 27 main appearances Officer Vanessa Rojas 17 main appearances Detective Sheldon Jin 15 main appearances
Recurring Guest Characters Olive Morgan Voight 7 guest appearances Dr. Natalie Manning 7 guest appearances Chief Administrator Sharon Goodwin 7 guest appearances Jordan Atwater 7 guest appearances Superintendent Brian Kelton 7 guest appearances Anna Avalos 7 guest appearances Chief Patrick O'Neal 7 guest appearances Laura Dawson 6 guest appearances Firefighter Brian "Otis" Zvonecek 6 guest appearances Lexi Olinsky 6 guest appearances Dr. Alec Willhite 6 guest appearances Callie Gibson 6 guest appearances Detective Kenny Rixton 6 guest appearances Chief Lugo 6 guest appearances Interim Superintendent Jason Crawford 6 guest appearances Patrol Officer Caswith 6 guest appearances IA Handler Erica Gradishar 5 guest appearances Wendy 5 guest appearances Firefighter Harold Capp 5 guest appearances Squad 3 Driver Tony Ferraris 5 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥