Mary Kay Bergman was an American voice actress and animation voice-over teacher, and comedienne, who succeeded Heather North Kenney as the voice of Daphne Blake most prominently in the firstthreedirect-to-video films. She was in turn succeeded by Grey DeLisle, a personal friend and student of Bergman. She was also the voice of Disney's Snow White and many of the female characters on South Park.
She suffered from depression and passed away November 11, 1999; a victim of a self-inflicted gunshot wound. Scooby-Doo And The Alien Invaders was dedicated to her.