Estelle Harris. Actress: Toy Story 2. Estelle Harris was an American actress and comedienne, known for her exaggerated shrill and grating comedic voice. She often worked as a voice actress in animation, voicing supporting characters and guest stars. Her best known roles are the obnoxious mother Estelle Costanza in the sitcom "Seinfeld" (1989-1998) and the sweet wife Mrs. Potato Head in the "Toy Story" film series. Harris was born Estelle Nussbaum...