Main Characters Firefighter Joe Cruz 227 main appearances Firefighter Randy "Mouch" McHolland 226 main appearances Lieutenant Christopher Herrmann 248 main appearances Deputy District Chief Wallace Boden 248 main appearances Lieutenant Kelly Severide 241 main appearances Matthew Casey 200 main appearances Paramedic Sylvie Brett 192 main appearances Firefighter Brian "Otis" Zvonecek 137 main appearances Lieutenant Stella Kidd 153 main appearances Gabriela Dawson 138 main appearances Darren Ritter 71 main appearances Blake Gallo 67 main appearances Peter Mills 66 main appearances Paramedic Violet Mikami 54 main appearances Paramedic Leslie Shay 46 main appearances Paramedic Emily Foster 37 main appearances Jimmy Borrelli 19 main appearances Paramedic Jessica "Chili" Chilton 14 main appearances Dr. Hallie Thomas 7 main appearances Paramedic Gianna Mackey 9 main appearances
Recurring Guest Characters Carl 2 guest appearances Neonatal Nurse Campbell 2 guest appearances Ian 2 guest appearances Paramedic Courtney 2 guest appearances Resident 2 guest appearances Dr. Sarah Reese 2 guest appearances Austin 2 guest appearances Lucas Hicks 2 guest appearances Dawn Hicks 2 guest appearances Dante 2 guest appearances State's Attorney Mark Jefferies 2 guest appearances Darin Whitney 2 guest appearances Tom Coletti 2 guest appearances J.J. Holloway 2 guest appearances Mindy Brill 2 guest appearances Chief Anderson 2 guest appearances Eddie Owens 2 guest appearances Rick Denton 2 guest appearances Paramedic Cesar 2 guest appearances Miranda 2 guest appearances ⇤ « 11 12 13 14 15 16 17 18 19 20 » ⇥