Martin Eugene Mull (August 18, 1943 – June 27, 2024) was an American actor, comedian and musician who appeared in many television and film roles. He was also a painter and recording artist. As an actor, he first became known in his role on Mary Hartman, Mary Hartman and its spin-off Fernwood 2 Night. Among his other notable roles are Colonel Mustard in the 1985 film Clue, Leon Carp on Roseanne, Willard Kraft on Sabrina the Teenage Witch, Vlad Masters / Vlad Plasmius on Danny Phantom, and Gene Parmesan
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