Walter Jonathan "Walt" Dohrn is an American writer, director, artist, actor, animator, musician, screenwriter, and voice artist. He is best known as the voice of Rumpelstiltskin in Shrek Forever After. He also provided the voices of a van student, Xavier, Principal Pynchley, a nanny dwarf, an evil knight, and a singing villain in Shrek the Third. He was also the voice of Doodlebob in the SpongeBob SquarePants episode "Frankendoodle." Dohrn was born Walter Jonathan Dohrn in 1970. Dohrn has also worked as writer and director of Season 2 of SpongeBob SquarePants.