Rowan Atkinson was 23 in Canned Laughter when he played the character 'Robert Box / Dave Perry / Mr. Marshall'.
That was over 45 years ago in 1979.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 69, and has starred in 72 movies in total, 73 of those since Canned Laughter was released.
In Canned Laughter, I think Rowan Atkinson looks: