Zach Galifianakis's rise to fame has been so meteoric that it's crazy to think his breakout performance in The Hangover was just three years ago. Like most actors, however, Galifianakis had a long career before he showed up on the public radar. Fifteen years ago, the then 28-year-old actor appeared on the short-lived sketch series Apt. 2F. Who would have thought the man in a focus group testing "assclock pants" would go on to star in his own movies?