Josh Radnor was 26 in Not Another Teen Movie when he played the character 'Tour Guide'.
That was over 22 years ago in 2001.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 49, and has starred in 7 movies in total, 6 of those since Not Another Teen Movie was released.
In Not Another Teen Movie, I think Josh Radnor looks: