Alan Oppenheimer

Alan Oppenheimer is an American character actor and voice actor with a long career in television and animation. His notable roles include Skeletor, Man-At-Arms, and Mer-Man in He-Man and the Masters of the Universe, along with numerous other cartoon and game characters. His English-language anime work includes Norman Burg in the second season of The Big O and Oomp of The Goblin Boomps in Little Nemo: Adventures in Slumberland.