Robert Fredrick "Rob" Paulsen III (born March 11, 1956) is an American voice actor, singer and former actor who has done many voice roles in various films, television shows and video games. He is best known for providing the voices of Raphael and Donatello from the 1987 cartoon and 2012 cartoon respectively of Teenage Mutant Ninja Turtles, Yakko Warner and Dr. Otto Scratchansniff from Animaniacs, Pinky from Pinky and the Brain and Animaniacs, and the title character in The Mask. In total, Paulsen has been the voice of over 250 different animated characters and performed in over 1000 commercials. He continues to play parts in dozens of cartoons as well as characters in animated feature movies.