One Chicago & FBI Wiki
One Chicago & FBI Wiki
What Will Define You
Season: 7
Episode: 7
Original airdate: November 7, 2018
Written by: Michael A. O'Shea
Directed by: Olivia Newman
Episode chronology
Previous episode: All the Proof
Next episode: The Solution to Everything


Severide faces some major adversity and Kidd is on a mission to help in any way she can. Following a car accident rescue involving a teenage girl and her young sister, a suspicious Brett has an unsettling feeling there is more to the story than what appears on the surface.


Main Cast

Guest Stars


  • Anthony Ferraris as Squad 3 Driver Tony Ferraris
  • Cathy Reilly as April Nolan
  • Janelle Snow as Beth Simmons
  • Steve Chikerotis as District Chief Steve Walker
  • Michael Accardo as Chief Burkett
  • Matthew Quentin Fahey as Paul
  • Michael Stock as Howard
  • Gerrit O'Neill as Mr. Belkin
  • Tempe Thomas as Mrs. Ballard
  • Benjamin Sprunger as Mr. Ballard
  • Everleigh Murphy as Rachel
  • Nidhi Ghildiyal as Nurse
  • LaQuis Harkins as Assistant


Background information and Notes


Chicago Fire season 7
Episodes A Closer EyeGoing to WarThirty Percent Sleight of HandThis Isn't CharityA Volatile MixtureAll the ProofWhat Will Define YouThe Solution to EverythingAlways a CatchInside These WallsYou ChooseMake This RightThe PlungeIt Wasn't About HockeyWhat I SawFault in HimMove a WallNo Such Thing as Bad LuckUntil the Weather BreaksTry Like HellThe White WhaleI'm Not Leaving You
Other Seasons Season 1Season 2Season 3Season 4Season 5Season 6Season 8Season 9Season 10