That was over 16 years ago in 2005.
Today he is 46, and has starred in 23 movies in total, 20 since Zathura: A Space Adventure was released.
In Zathura: A Space Adventure, I think Dax Shepard looks:
Zathura: A Space Adventure scores 6.1 out of 10 on The Movie Database.
Dax Shepard's first acting role was as 'Tom Marshall' in Without a Paddle, released in 2004 when he was 29.