McWolf is the main antagonist of the "Droopy and Dripple" segments, and a recurring character in Tom & Jerry Kids. A bad and cruel wolf whose only mission is to ruin the life of Droopy and Dripple (and sometimes to remain with Miss Vavoom). Sometimes for of crazy scientist whom it loves to dominate the world, of space villain, a criminal fat person (known as "The Chubby Man"), etc. His character is based on the wolf in Red Hot Riding Hood. He is voiced by Frank Welker and John DiMaggio.