Mark Pellegrino was 31 in The Lost World: Jurassic Park when he played the character 'Tourist #6 (uncredited)'.
That was over 27 years ago in 1997.
Today he is 59, and has starred in 52 movies in total, 32 of those since The Lost World: Jurassic Park was released.
In The Lost World: Jurassic Park, I think Mark Pellegrino looks: