Sidney Blackmer: Sidney Blackmer. Actor: Rosemary's Baby. Sidney Blackmer, the Tony-award winning actor who played Teddy Roosevelt in seven movies, is best remembered by today's movie audiences for his turn as the warlock/coven-leader Roman Castevet in Roman Polanski's Rosemary's Baby (1968).
Born and raised in Salisbury, North Carolina, where he made his debut on July 13, 1895, he had planned as a young man to study law at the University of North Carolina-Chapel...
