Frank Welker was 55 in Atlantis: Milo's Return when he played the character 'Obby / Mantell (voice)'.
That was over 21 years ago in 2003.
Today he is 78, and has starred in 386 movies in total, 148 of those since Atlantis: Milo's Return was released.
In Atlantis: Milo's Return, I think Frank Welker looks: