Mapson was raised in Minneapolis until the age of 13 and has been in California since. He went to Bullard High in Fresno and Bethany College in Scotts Valley. His film debut was in More American Grafitti as a draft protestor and has 30 years of acting since as a cop, sheriff, guard, detective, soldier, biker, bouncer, bodyguard, hillbilly, redneck, Elvis Impersonator, etc. He also has a background in stunts and directing stunts. Was Ranger Voss, with Matt McCoy, in "Bigfoot:the Incredible Adventure". Had a fight, as a guard, with Pierce Brosnan in "Lawnmowerman". Got shot at by Arnold in "Terminator". Was a detective, with Cheryl Ladd in "A Mothers Rage". Was the stunt coordinator and biker in the werewolf film "Night Shadow" with Kato Kaelin. Sheriff & Stunt Coordinator for "Warpath". Stunt double for Weird Al in his music video "I Lost On Jeopardy". Played Marv the mechanic in the car racing film, "Finish Line" seen at finishlinemovie.com Also, gunfighter Luke Tanner in the western "Forgiven" with Alan Autry, which is available at pureflix.com. Jimmy the prison guard in "Death & Texas" with Charles Durning & Steve Harris. Was seen as detective Rick Canfield in "Secret Lives" which aired on Lifetime August 12th,2003 at 8pm, "Vicious Valentine" episode. Did a pilot for TV called "The Body Shop" where he's another mechanic. Finished completion on the short film "Caught" as the lead FBI agent, Sam. The Enforcer in the film "All That I Need" which screened at Cannes in May'05 and opened in limited release through Regal on Dec.2nd,'05 see allthatineed.net. Visit Amazon.com "Hot Rod Horror"(from the director) that he directed & acted in. Most recently played a posse member and orderly in the soon to be released short western film "So Shall You Reap" for Jessica Satori, cinematographer was Ron Vidor. He is President of Video Man Productions and Vice President of Christian Benefit Foundation.