Main Characters Firefighter Randy "Mouch" McHolland 226 main appearances Firefighter Joe Cruz 225 main appearances Deputy District Chief Wallace Boden 248 main appearances Lieutenant Christopher Herrmann 247 main appearances Lieutenant Kelly Severide 239 main appearances Matthew Casey 200 main appearances Paramedic Sylvie Brett 192 main appearances Firefighter Brian "Otis" Zvonecek 137 main appearances Lieutenant Stella Kidd 152 main appearances Gabriela Dawson 138 main appearances Darren Ritter 70 main appearances Blake Gallo 67 main appearances Peter Mills 66 main appearances Paramedic Violet Mikami 52 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 Detective Lamar 1 guest appearances Denny 1 guest appearances Alan Roesch 1 guest appearances Shimblecock 1 guest appearances Weston Polk 1 guest appearances Mikey 1 guest appearances Big Al 1 guest appearances Sandy 1 guest appearances Alana 1 guest appearances Ray Averett 1 guest appearances Waiter 1 guest appearances NICU Nurse 1 guest appearances Gum Chewing Girl 1 guest appearances Chief Carver 1 guest appearances Officer Spicer 1 guest appearances Officer Dirkes 1 guest appearances CJ 1 guest appearances Father Pete 1 guest appearances Assistant 1 guest appearances Random Protester 1 guest appearances ⇤ « 93 94 95 96 97 98 99 100 101 102 » ⇥