Chicago Fire season 4

The fourth season of Chicago Fire, an American drama television series with executive producer Dick Wolf, and producers Derek Haas, Michael Brandt, and Matt Olmstead, was ordered on February 5, 2015, by NBC, and premiered on October 13, 2015, and concluded on May 17, 2016. The season contained 23 episodes.

Overview
The show follows the lives of the firefighters and paramedics working at the Chicago Fire Department at the firehouse of Engine 51, Truck 81, Squad 3, Ambulance 61 and Battalion 25.

Main cast

 * Jesse Spencer as Lieutenant Matthew Casey, Truck 81
 * Taylor Kinney as Firefighter/Lieutenant Kelly Severide, Squad 3
 * Monica Raymund as Firefighter Gabriela Dawson, Truck 81
 * Kara Killmer as Paramedic/Paramedic In Charge Sylvie Brett, Ambulance 61
 * David Eigenberg as Firefighter Christopher Herrmann, Truck 81
 * Yuri Sardarov as Firefighter Brian "Otis" Zvonecek, Truck 81
 * Joe Minoso as Firefighter Joe Cruz, Squad 3
 * Christian Stolte as Firefighter Randy "Mouch" McHolland, Truck 81
 * Dora Madison as Paramedic in Charge/Paramedic Jessica "Chili" Chilton, Ambulance 61 (Episodes 1-14)
 * Steven R. McQueen as Firefighter Candidate/Paramedic Jimmy Borelli, Truck 81/ Ambulance 61
 * Eamonn Walker as Chief Wallace Boden, Battalion 25

Recurring

 * The Cohen Twins (Aiden & Austin Cohen) as Louie
 * Randy Flagler as Firefighter Harold Capp, Rescue Squad 3
 * Anthony Ferraris as Firefighter Tony Ferraris, Rescue Squad 3
 * DuShon Brown as Connie
 * Brian J. White as Captain/Battalion Chief Dallas Patterson, Rescue Squad 3/ Firehouse 51/ Firehouse 90
 * Miranda Rae Mayo as Firefighter Stella Kidd, Truck 81
 * Treat Williams as Benjamin "Benny" Severide
 * Melissa Ponzio as Donna Robbins-Boden
 * Robyn Coffin as Cindy Herrmann
 * Brandon Jay McLaren as Danny Booker
 * Jenny Mollen as Detective Bianca Holloway
 * Holly Robinson Peete as Tamara Jones
 * Lauren Stamile as Susan Weller
 * Guy Burnet as Grant Smith
 * Gordon Clapp as Chaplain Orlovsky
 * Liza J. Bennett as Agent Alex Ward
 * Deanna Reed-Foster as Tina Cantrell, Department of Children and Family Services
 * Rachel Nichols as Jamie Killian
 * Fredric Lehne as Deputy District Chief Ray Riddle
 * Tom Amandes as Detective Ryan Wheeler
 * Ilfenesh Hadera as Serena Holmes
 * Mark Hengst as Roger Maddox
 * Ralph Rodriguez as Freddie Clemente
 * Susannah Flood as Athena Bailey-Johnson
 * Andy Ahrens as Firefighter Danny Borelli, Engine 67
 * Eric Mabius as Jack Nesbitt

Crossover characters

 * Nick Gehlfuss as Dr. Will Halstead
 * Jason Beghe as Sergeant Henry "Hank" Voight
 * Jon Seda as Detective Antonio Dawson
 * Oliver Platt as Dr. Daniel Charles
 * Yaya DaCosta as April Sexton
 * Patrick John Flueger as Officer Adam Ruzek
 * LaRoyce Hawkins as Officer Kevin Atwater
 * Marina Squerciati as Officer Kim Burgess
 * Amy Morton as Desk Sergeant Trudy Platt
 * Brian Geraghty as Officer Sean Roman
 * Elias Koteas as Detective Alvin Olinsky
 * Colin Donnell as Dr. Connor Rhodes
 * Rachel DiPillo as Sarah Reese
 * Brian Tee as Dr. Ethan Choi
 * Marlyne Barrett as Maggie Lockwood
 * Samuel Hunt as Greg "Mouse" Gerwitz
 * Barbara Eve Harris as Deputy Chief Emma Crowley
 * Chris Agos as Assistant State's Attorney Steve Kot
 * Armand Schultz as Alderman Colin Becks

Home media
The DVD release of season four was released in Region 1 on August 30, 2016.