Zach Galifianakis started his so-called career in back of a hamburger joint in New York. Well-known and loved by the Comedy Central crowd, he is one of the Comedians of Comedy, played director Alan Finger in the series Dog Bites Man and wowed the critics with his acclaimed VH1 show, Late World With Zach.

A master of the one-liner, with an absurd rambling style, Zach's sharp, resonating humor makes his show at the famed Purple Onion in San Francisco one of the funniest performances in recent comedy.

Off-stage, you will meet Seth Galifianakis, Zach's "twin brother." In an emotional interview with Brian Unger, he sheds some light on his "brother" Zach, revealing how he came to be who he is today.