Bruce Greenwood ~  
Stuart Bruce Greenwood {born August 12, 1956}

A Canadian actor and producer. He is known for his role as the
 American president John F. Kennedy in Thirteen Days,
In television, he 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 Amy Holden Jones-created medical drama The Resident