doctor from Voight's past is under investigation when four of his patients are sent to Chicago Med for an overdose of chemotherapy.
Jason Beghe Sergeant Hank Voight
Jon Seda Detective Antonio Dawson
Sophia Bush Detective Erin Lindsay
Jesse Lee Soffer Detective Jay Halstead
Patrick John Flueger Officer Kyle Ruzek
Marina Squerciati Officer Kim Burgess
Elias Koteas Detective Alvin Olinsky