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 Jake Williams 2 guest appearances Gus 2 guest appearances Marvin Watkins 2 guest appearances Landlord 2 guest appearances Chase Mason 2 guest appearances Baba 2 guest appearances Beth 2 guest appearances Celia 2 guest appearances Interim Chief Pat Pridgen 2 guest appearances Emmett 2 guest appearances Veronica Harrington 2 guest appearances Dr. Bachman 2 guest appearances Logan Rice 2 guest appearances Hostess Trish 2 guest appearances Craig "Mouse" Gurwitch 2 guest appearances Homeless Man 2 guest appearances Dr. Pierson 2 guest appearances Rahm Emanuel 2 guest appearances FBI Special Agent Conway 2 guest appearances IA Officer Fitzgerald 2 guest appearances ⇤ « 10 11 12 13 14 15 16 17 18 19 » ⇥