He was a supporting actor in Wild at Heart, Predator 2, and Coming to America. He received additional recognition for his performances in Wild at Heart, Rain, and The Mercenaries.
He acted in Broadway productions before having his first film role in 1961.
He became known to '70s film fans for his roles in The Beast Must Die and Let's Do It Again.
He had three children with his wife Jennifer Miles-Lockhart.
His character in the 1975 gangster film, Let's Do It Again, inspired the Notorious B.I.G.'s stage name.