Favorite actors include John Malkovich, John Turturro, Mark Ruffalo, Sam Rockwell, Michael Shannon and Ed Harris.
Went to high school in Nebraska and Montana.
When he was 16, Gregory saw James Earl Jones on Broadway in August Wilson's Fences. He points to this experience as one of the reasons he became an actor.
Studied acting at Rutgers University.
Has run 11 marathons. New York (3), Washington DC, Chicago, Philadelphia, New Jersey, Steamtown, Key West, Amsterdam & Paris.