Freddie Prinze Jr. was 27 in Scooby-Doo 2: Monsters Unleashed when he played the character 'Fred Jones'.
That was over 19 years ago in 2004.
Today he is 47, and has starred in 32 movies in total, 15 of those since Scooby-Doo 2: Monsters Unleashed was released.
In Scooby-Doo 2: Monsters Unleashed, I think Freddie Prinze Jr. looks: