Before he played Dr. Crockett Marcel on “Chicago Med,” Dominic Rains was Dr. Leo Julian on "General Hospital" and its nighttime spinoff "General Hospital: Night Shift." The gig lasted for two years and spanned a total of 49 episodes Before it was eventually canceled.

The actor's next major role would be in Anna Lily Amirpour's Persian-language vampire movie "A Girl Walks Home Alone at Night.” Rains plays the villainous Saeed, aka “The Pimp,” and his performance and the film as a whole won critical acclaim.

Rains has appeared twice in the Marvel Cinematic Universe, playing a CIA Training Instructor in "Captain America: The Winter Soldier" and Kasius, leader of the Kree Watch, on "Marvel's Agents of S.H.I.E.L.D." It's a long way from Kree to an Illinois emergency room, but it's a credit to Rains that he makes all characters' journeys believable.