William Marshall: William Marshall. Actor: Blacula. Dynamic African American leading man and characters actor William Marshall trained in Grand Opera, Broadway and Shakespeare. In films from the 50s and 60s including: Lydia Bailey (1952), Something of Value (1957), To Trap a Spy (1964) and finally known for being in The Boston Strangler (1968) with Tony Curtis. Marshall really didn't hit it big until the "blaxplotation" era of the 70s. He starred in...