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.”

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,

James Carter Cathcart, the voice behind iconic Pokémon characters, passed away. He was 71. Cathcart battled throat cancer. He voiced James, Meowth, Professor Oak, and Gary Oak. He took over the roles in 2006.