Cathcart was known for not only voicing characters like Gary Oak, but also Professor Oak and Team Rocket's James and Meowth later in his career. He also worked on other series like Yu-Gi-Oh! (Weevil Underwood) and Sonic the Hedgehog (Vector).

He was known for playing Professor Oak and Meowth in the long-running franchise. He also made appearances in other popular animated series such as “Yu-Gi-Oh!” and “One Piece.”

The longest serving Pokemon voice actor, who's been with the franchise since it's English premier, has sadly passed away at 71.