Remember that time Phil Mickelson taught Superman how to golf in an episode of Lois & Clark: The New Adventures of Superman? Us, neither. So we fired up the Way Back Machine to unearth this episode from the first season of Lois & Clark, which first aired on Jan. 9, 1994. Enjoy!
According to Mickeslon's IMDB page, he's also had cameos in Tin Cup and Entourage [below].
But we've always like Mickelson's commerical work the best: