Main Characters Firefighter Joe Cruz 228 main appearances Firefighter Randy "Mouch" McHolland 227 main appearances Lieutenant Christopher Herrmann 249 main appearances Deputy District Chief Wallace Boden 249 main appearances Lieutenant Kelly Severide 242 main appearances Matthew Casey 200 main appearances Paramedic Sylvie Brett 192 main appearances Lieutenant Stella Kidd 154 main appearances Firefighter Brian "Otis" Zvonecek 137 main appearances Gabriela Dawson 138 main appearances Darren Ritter 72 main appearances Blake Gallo 67 main appearances Paramedic Violet Mikami 55 main appearances Peter Mills 66 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 Hope Jacquinot 8 guest appearances Lily 8 guest appearances Ingrid Mills 7 guest appearances Firefighter Tommy Welch 7 guest appearances Nancy Annalyn Casey 7 guest appearances Ben Darden 7 guest appearances Isabella 7 guest appearances Devon 7 guest appearances Firefighter Rebecca Jones 7 guest appearances Firefighter Scott Rice 7 guest appearances Sharon Goodwin 7 guest appearances Jack Nesbitt 7 guest appearances Deputy District Chief Ray Riddle 7 guest appearances Freddie Clemente 7 guest appearances Dr. Ethan Choi 7 guest appearances Ramon Dawson 7 guest appearances Detective Hailey Upton 7 guest appearances Detective Pryma 7 guest appearances Dylan 7 guest appearances Elise Mills 6 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥