Topher Grace was 24 in Win a Date with Tad Hamilton! when he played the character 'Pete Monash'.
That was over 20 years ago in 2004.
Today he is 45, and has starred in 37 movies in total, 31 of those since Win a Date with Tad Hamilton! was released.
In Win a Date with Tad Hamilton!, I think Topher Grace looks: