Reason Sarah Reese Left 'Chicago Med'

And Steven Weber was a great person to be able to ask, because Dr. Archer has gone through the wringer this season, starting ...
As revealed in a promo for next Wednesday’s Chicago Med, Rachel DiPillo will reprise her role as Dr. Charles’ former psych resident Dr. Sarah Reese in the fall finale (airing Nov. 20 at 8/7c).