One Chicago & FBI Wiki
One Chicago & FBI Wiki
Natural History
Season: 2
Episode: 3
Original airdate: October 6, 2016
Written by: Danny Weiss
Stephen Hootstein
Directed by: Michael Waxman
Episode chronology
Previous episode: Win Loss
Next episode: Brother's Keeper


Dr. Manning and fourth-year medical student Jeff Clarke are forced to figure out a mystery illness when an Indonesian man who doesn't speak English arrives at the hospital in dire straights. Maggie takes Dr. Halstead to her family reunion where he meets her sibling Denise and uncovers deep-rooted family secrets. Meanwhile, Dr. Rhodes takes on a complicated heart surgery without consulting Dr. Latham and Dr. Reese and Dr. Charles encounter a woman experiencing an unusual pregnancy.


Main Cast

Guest Stars


  • Susie McMonagle as Elaine Simon
  • James Houton as Glenn Simon
  • Shiri Aljadeff as Doctor Leah Bardovi
  • Reggie Luis Ruivivar as Patient / Pitopang
  • Cesar Jaime as Paramedic Cesar
  • Tosin Morohunfola as Doctor Allan Vorspan
  • Norman Yap as Translator
  • Audrey Morgan as Grandma Rose
  • Herb Porter as Uncle Miles


Background information and Notes

Chicago Med season 2
Episodes Soul CareWin LossNatural HistoryBrother's KeeperExtreme MeasuresAlternative MedicineInherent BiasFree WillUncharted TerritoryHeart MattersGraveyard ShiftMirror MirrorTheseus' ShipCold FrontLose YourselfPrisoner's DilemmaMonday MourningLesson LearnedCtrl AltGeneration GapDeliver UsWhite ButterfliesLove Hurts
Other Seasons Season 1Season 3Season 4Season 5Season 6Season 7