Tom Selleck — The man with arguably the most famous mustache in Hollywood is a gun-rights advocate with libertarian leanings. In his most notable role, Magnum, P.I. (created by conservative producer Don Bellisario), Selleck played a Vietnam veteran who goes on fun adventures in Hawaii with his ex-military buddies. Selleck and the show garnered a lot of respect from veterans because it was the first show that didn’t portray Vietnam veterans as deranged psychos stricken with PTSD.