Birth Date: June 5, 1961
Birth Place: Los Angeles, California, USA
Also Credited as: Shannen Cassidy
Date of Death: November 11, 1999 / Age: 38
Location of Death: West Los Angeles, California, USA
Cause of Death: suicide by gunshot
Biography: Mary Kay Bergman (June 5, 1961 – November 11, 1999) was a voice actor with numerous roles and bit parts in television, film, direct-to-video animation, and advertising.
She is best known for voicing most of the female characters in the series South Park and in the 1999 film South Park: Bigger, Longer & Uncut. Her characters included Liane Cartman, mother of Eric Cartman; Sheila Broflovski, mother of Kyle Broflovski; Sharon Marsh, mother of Stan Marsh; Mrs. McCormick, mother of Kenny McCormick; and Wendy Testaburger. Originally, she was credited on South Park as Shannen Cassidy because she was also serving as Disney's official Snow White voice.
Her other voice credits include various Disney films (Beauty And The Beast, The Hunchback Of Notre Dame, Hercules, Toy Story 2), and as the voice of Jay Jay the Jet Plane, Daphne Blake in more recent Scooby-Doo animated films, and Timmy Turner in Oh Yeah! Cartoons episodes of The Fairly OddParents.
Her death at the age of 38 by suicide came as a great shock to those close to her, who were unaware that she suffered from mental illness. In her memory, her husband Dino Andrade established the Mary Kay Bergman Memorial Fund. The Fund contributes to the operation of the Suicide Prevention Center at the Didi Hirsch Community Mental Health Center.