Parenthood star Dax Shepard first caught Marc's attention as the barely functional simpleton named Frito in Idiocracy. And while he's had an expansive acting career, starting at Punk'd and leading up to his latest movie This Is Where I Leave You, Dax's life has been defined by his family, his sobriety and his cars. Lots of cars. And lots of racing in those cars. See acast.com/privacy for privacy and opt-out information. Sign up here for WTF+ to get the full show archives and weekly bonus material! https://plus.acast.com/s/wtf-with-marc-maron-podcast.