Martin Eugene Mull (born August 18, 1943) is an American actor, comedian and musician who has appeared in many television and film roles. He is 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/Plasmius on Danny Phantom, and Gene Parmesan on Arrested Development. He had a recurring role on Two and a Half Men as Russell, the drug-using, humorous pharmacist. Early years and education Mull was born in Chicago, the son of Betty Mull, an actress and director, and Harold Mull, a carpenter. He moved with his family to North Ridgeville, Ohio, when he was two years old. They lived there until he was 15 years old, when his family moved to New Canaan, Connecticut. There he attended and graduated from New Canaan High School. He studied painting and graduated in 1965 from the Rhode Island School of Design with a Bachelor of Fine Arts; in 1967, he earned a Master of Fine Arts in painting, also from RISD. Career Musical career Mull broke into show business as a songwriter, penning Jane Morgan's 1970 country single, "A Girl Named Johnny Cash", which peaked at No. 61 on Billboards country charts. Shortly thereafter, he began his own recording career. Throughout the 1970s, and especially in the first half of the decade, Mull was best known as a musical comedian, performing satirical and humorous songs both live and in studio recordings. Rather than the stage trappings of most musical acts, Mull would decorate his stage with comfortable thrift store furniture. Notable live gigs included opening for Randy Newman and Sandy Denny at Boston Symphony Hall in 1973; Frank Zappa at Austin's Armadillo World Headquarters in 1973; Billy Joel in Wilkes-Barre, Pennsylvania in 1974; and for Bruce Springsteen at the Shady Grove Music Fair in Gaithersburg, Maryland, in October 1974. His self-titled debut album, released by Capricorn in 1972, featured many noteworthy musicians, including Ramblin' Jack Elliott, Levon Helm from The Band, Keith Spring of NRBQ and Libby Titus. Elvis Costello and Gary Sperrazza attribute the remark "Writing about music is like dancing about architecture" to Martin Mull. Acting career Mull's first well-known acting role was as Garth Gimble