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 Panicked Young Mother 1 guest appearances Chuck 1 guest appearances Mekhi 1 guest appearances Bulldozer Driver 1 guest appearances Homeless Man 1 guest appearances Felix 1 guest appearances Irene 1 guest appearances Breanne 1 guest appearances Vanessa 1 guest appearances Big Jim 1 guest appearances Al Wicker 1 guest appearances Detective Corwin 1 guest appearances Mort 1 guest appearances Jackie 1 guest appearances Doctor 1 guest appearances Mr. Heglund 1 guest appearances Dylan 1 guest appearances Reese 1 guest appearances Sharla 1 guest appearances Dalan 1 guest appearances ⇤ « 96 97 98 99 100 101 102 103 104 105 » ⇥