Mr. Cathcart was known for playing the characters 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.”

James Carter Cathcart, a voice actor who starred as several popular character in the “Pokemon” franchise, died Tuesday after a battle with throat cancer. He was 71. Cathcart voiced Professor Oak, his grandson Gary Oak,

A prolific voice actor behind Pokémon's Professor Oak and many other classic animated characters has passed away. James Carter Cathcart, who was best known for his voice acting work in animation and video games,