Conversation so far:
What was Zach Galifianakis' first mainstream performance?
Galifianakis played Alan Garner in the hit comedy The Hangover
What other roles did Zach Galifianakis take after The Hangover?
He was also prominently advertised in subsequent films that featured him in supporting roles, such as G-Force, Youth in Revolt and Up in the Air.
What role did Zach Galifianakis play in Up in the Air?
Steve Sewa
Is there any interesting information on Zach Galifianakis?
Galifianakis hosted Saturday Night Live on March 6, 2010, during which he shaved his beard mid-show for a sketch, and closed the show wearing a fake one.

Question: Did he do any TV roles?
Self-contained rewrite: Did Zach Galifianakis do any TV roles?