Stuart Bruce Greenwood (born August 12, 1956) is a Canadian actor and producer. He is known for his role as the American president John F. Kennedy in Thirteen Days, for which he won the Satellite Award for Best Supporting Actor – Motion Picture, and as Captain Christopher Pike in J. J. Abrams's Star Trek reboot series. He has been nominated for three Canadian Screen Awards, once for Best Actor (for Elephant Song) and twice for Best Supporting Actor (for The Sweet Hereafter and Being Julia). In television, Greenwood starred as Gil Garcetti in The People v. O. J. Simpson: American Crime Story, and has appeared in Mad Men, St. Elsewhere, Knots Landing, and John from Cincinnati. He currently stars as Dr. Randolph Bell in the medical drama The Resident. He has appeared in supporting roles in such films as National Treasure: Book of Secrets, Kingsman: The Golden Circle, Hollywood Homicide, Double Jeopardy, Déjà Vu, I, Robot, Dinner for Schmucks, Capote, The Post and as the motion-capture alien dubbed "Cooper" in Super 8. Greenwood is also a voice actor; his voice roles include Chiron in the Canadian animated series Class of the Titans and Bruce Wayne / Batman in Batman: Under the Red Hood, Young Justice and Batman: Gotham by Gaslight.