Bill Burr was 33 in Bill Burr: Comedy Central Presents when he played the character 'Self'.
That was over 21 years ago in 2003.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 55, and has starred in 40 movies in total, 37 of those since Bill Burr: Comedy Central Presents was released.
In Bill Burr: Comedy Central Presents, I think Bill Burr looks: