Season 6 of Chicago Fire premiered on September 28, 2017 with the episode It Wasn't Enough. This season consists of 23 episodes. Season 6 concluded on May 10, 2018 with The Grand Gesture. Jesse Spencer as Lieutenant/Captain Matthew Casey Taylor Kinney as Lieutenant Kelly Severide Monica Raymund as Paramedic Gabriela Dawson Kara Killmer as Paramedic Sylvie Brett David Eigenberg as Firefighter Matthew Casey Taylor Kinney Kelly Severide Charlie Barnett Peter Mills Monica Raymund Gabriela Dawson Lauren German Leslie Shay Eamonn Walker Chief Wallace Boden Advertise With Us Photos Chicago Watch Chicago Fire - Season 3, Episode 6 with a subscription on Peacock, or buy it on Vudu, Amazon Prime Video, Apple TV. Return to page navigation Popular TV on Streaming Introduced as a new antagonist in "Chicago Fire" Season 2, Gail McLeod has an unenviable mission.As the Deputy Director of Finance for the State of Illinois, she has to reduce the budget of the Watch Chicago Fire Season 2. The courageous firefighters, rescue squad members and paramedics of Chicago Firehouse 51 forge unbreakable bonds while fighting to save their city from peril. Catch new episodes first on NBC. A Problem House. Episode 1 - 43 mins. Lt. Severide is targeted by an arsonist; Battalion Chief Boden clashes with Gail McLeod. The Percy Jackson and the Olympians Cast on 19 Episode 20 Episode 21 Episode 22 Chicago Fire - Season 1, Episode 4 photos. Eo9Tuw.