An Agent of the Machine
Season: 5
Episode: 12
Original airdate: February 7, 2017
Written by: Jill Weinberger
Directed by: Jann Turner
Episode chronology
Previous episode: Who Lives and Who Dies
Next episode: Trading in Scuttlebutt


The team is on high alert when a previous incident during a fire call leaves a dangerous man on the loose with a vendetta to target Lt. Casey and Firehouse 51, and prompts CPD to step in. Dennis Mack, a buddy firefighter of Severide's father, comes to town to shadow the squad but may have ulterior motives. Meanwhile, Brett and Antonio's relationship hits some bumps in the road when his ex-wife Laura surfaces and Casey has a present for Dawson.


Main Cast

Guest Stars


  • Anthony Ferraris as Squad 3 Driver Tony Ferraris
  • Sarah Scanlon as Carly
  • Greg Mills as Rick Denton
  • Autumn Bell as Miranda
  • Zach Garcia as Diego Dawson
  • Steven Beaudion as Logan
  • Austin Kairis as Mitch
  • Travis Delgado as Officer #1
  • Shad Kunkle as Cop #3
  • Marcus Hendricks as Uniformed Officer


Background information and Notes

Chicago Fire season 5
Episodes The Hose or the AnimalA Real Wake-Up CallScorched EarthNobody Else is Dying TodayI Held Her HandThat DayLift Each OtherOne HundredSome Make It, Some Don'tThe People We MeetWho Lives and Who DiesAn Agent of the MachineTrading in ScuttlebuttPurgatoryDeathtrapTelling Her GoodbyeBabies and FoolsTake a KneeCarry Their LegacyCarry MeSixty DaysMy Miracle
Other Seasons Season 1Season 2Season 3Season 4Season 6Season 7Season 8Season 9
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