That was over 12 years ago in 2009.
Today he is 51, and has starred in 52 movies in total, 28 since The Hangover was released.
In The Hangover, I think Zach Galifianakis looks:
The Hangover scores 7.2 out of 10 on The Movie Database.
Zach Galifianakis' first acting role was as 'Alan Garner' in The Hangover, released in 2009 when he was 39.