Charlie Day was 23 in Mary and Rhoda when he played the character 'Mailroom Kid'.
That was over 23 years ago in 2000.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 47, and has starred in 30 movies in total, 28 of those since Mary and Rhoda was released.
In Mary and Rhoda, I think Charlie Day looks: