James Jonah "Jim" Cummings (born November 3, 1952) is an American voice actor and singer. One of the most popular and seasoned voice actors in the country, he might be best recognized for roles such as Leatherhead in Teenage Mutant Ninja Turtles, the current voice of the Tazmanian Devil in almost every Looney Tunes media since Taz-Mania, Dr. Robotnik in Sonic the Hedgehog, Fat Cat in Chip n' Dale Rescue Rangers, Darkwing Duck and Negaduck in Darkwing Duck, the current voice of Peg-Leg Pete, Razoul in Aladdin, Cat inCatDog (opposite Tom Kenny), Fuzzy Lumpkins in The Powerpuff Girls, Lord Boxman in OK K.O.! Let's Be Heroes, Morocco Mole in Super Secret Secret Squirrel, MODOK in Iron Man, Ackar in Bionicle: The Legend Reborn, Thor in Marvel: Ultimate Alliance 2, Thanos in The Super Hero Squad Show Season 2 (taking over from Steve Blum), Kraven the Hunter in Spider-Man: Shattered Dimensions, Hondo Ohnaka in Star Wars: The Clone Wars, and most of all, Winnie the Pooh (and Tigger too!).
If we were to put up more of his roles on this page, it would be very long. Let's just say that Disney probably has him on speed-dial.