From Wikipedia, the free encyclopedia. Mike Horner (born February 3, 1955) is an American pornographic actor. He is sometimes credited as Don Hart, Don Horner, "Dan Sir", or Johnny Wilson. Mike Horner began acting in small sex films, at the time referred to as loops (named after the style of their presentation, constantly looped 16mm films shown in booths), in January 1978. His first feature movie was 1979's Tangerine. He has been in over 1500 feature (story based) films and videos, and performed in over 500 additional all sex videos, with approximately 1800 actresses. He attended San Francisco State University, UCLA, and graduated from Sonoma State University. He pursued acting, theatre, and dance prior to his porn career, but became more involved after his exposure to adult films. Mike started out making only around $40–100 a movie. While only a sideline job at first, hardcore finally became Mike's primary income in 1983. He made the move to Southern California in 1991 to make porn his primary objective.
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