As Season 3 of Louie winds to a close, we find things looking up for the hapless Louis CK. The head of CBS invites Louie to his office and gives him a career-defining opportunity, the chance to take over the Late Show from a retiring David Letterman. But that is all predicated on one thing -- the schlumpy comedian becoming a polished late-night talk show host in a few short months. And the man tasked with helping Louie make the transition is none other than David Lynch, playing the role of "Jack Dahl." Jerry Seinfeld, Chris Rock, and Jay Leno all make appearances in this episode. But make no mistake, it's Lynch, the only non-comedian of the bunch, who provides the biggest laughs.