Robert Fredrick "Rob" Paulsen III (born March 11, 1956) is an American voice actor, singer and former film and television actor who has done many voice roles in various films, television shows and video games. He is best known for his roles as Pinky from "Pinky and the Brain". P.J. in "A Goofy Movie" and "Goof Troop", Carl Wheezer from "The Adventures of Jimmy Neutron Boy Genius", Raphael (1987) and Donatello (2012) from "Teenage Mutant Ninja Turtles" and Dr. Otto Scratchansniff from "Animaniacs".