Listen to the sound clip Krabappel from Mr. Bergstrom Sounds: The Simpsons - Season 2: Krabappel Krabappel This sound is from Mr. Bergstrom Sounds: The Simpsons - Season 2 Mr. Bergstrom is a substitute teacher who appeared on a Season 2 episode of The Simpsons. He was voiced by Dustin Hoffman. Go to the full soundboardwith more sound clips Search