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.”

He did voice work for numerous other cartoon shows as well, including “Yu-Gi-Oh!,” “One Piece,” “Teenage Mutant Ninja Turtles,” and “Sonic X.”

James Carter Cathcart, a performer best known for his voice work in the “Pokémon” franchise, died Tuesday at the age of 71.