Biography
Mary Kay Bergman (June 5, 1961 – November 11, 1999), also credited as Shannen Cassidy, was an American voice actress and voice-over teacher. Bergman was the lead female voice actress on South Park from the show's 1997 debut until her death. Throughout her career, Bergman performed voice work for over 400 television commercials and voiced over 100 cartoon, film, and video game characters. Born in Los Angeles, Bergman had an interest in fantasy and animation early in her life. She acted in plays ...
Known For
Complete Filmography
Christmas Time in South Park
2007
as Sheila Broflovski / Shelley Marsh (voice)
There's no better time of year than Christmas, especially in South Park. So, stop fighting with the family, gather 'round the fire and watch these cla...
Balto: Wolf Quest
2002
as Fox / Wolverine 3
Balto and his daughter Aleu embark on a journey of adventure and self discovery.
Lady and the Tramp II: Scamp's Adventure
2001
as Si (voice)
Lady and Tramp's mischievous pup, Scamp, gets fed up with rules and restrictions imposed on him by life in a family, and longs for a wild and free lif...
Bob's Video
2000
as Lady in Red / Telephone Voice / Radio Dispatcher (voice)
On the first night that a small town father and son owned video store stays open 24 hours a Bonnie and Clyde type who are on the run from the police d...
The Life & Adventures of Santa Claus
2000
as Martha / Nymph (voice)
Based on the popular book by L. Frank Baum, the beloved author of The Wonderful Wizard of Oz, comes the incredible story of The Life & Adventures of S...
Scooby-Doo/Courage the Cowardly Dog Scare-A-Thon
2000
as Daphne Blake (voice)
The Mystery Machine is stuck in Nowhere, leading the gang to seek help from Courage and his family.
Scooby-Doo and the Alien Invaders
2000
as Daphne Blake (voice)
A cosmic case of flying saucers, intergalactic intrigue and out-of-this-world romance launches Scooby-Doo! and the Mystery Inc., Gang into their most ...
Maxine's Christmas Carol
2000
Hallmark's popular greeting card curmudgeon is ready to turn Branson's gleeful Christmas season upside down with singing, dancing and, of course, the ...
Snowden's Christmas
1999
as (voice)
When the moving truck hits a bump in the road, a quartet of toys stuck in Ohio decide to trek down their owner, who is moving to New York City.
The Scooby-Doo Project
1999
as Daphne Blake (voice)
In the Fall of 1999, four teenage sleuths and their Great Dane got lost in the woods while in search of a mystery. This is their story.
Toy Story 2
1999
as Additional Voices (voice)
Andy heads off to Cowboy Camp, leaving his toys to their own devices. Things shift into high gear when an obsessive toy collector named Al McWhiggen, ...
Scooby-Doo! and the Witch's Ghost
1999
as Daphne (voice)
Scooby-Doo and the Mystery Gang visit Oakhaven, Massachusetts to seek strange goings on involving a famous horror novelist and his ancestor who is rum...
Alvin and the Chipmunks Meet Frankenstein
1999
as Mother (voice)
The Chipmunks work in an amusement park attraction. After Alvin drives a crazy tour group, they miss their next performance and are locked in the park...
The Iron Giant
1999
as Additional Voices (voice)
In the small town of Rockwell, Maine in October 1957, a giant metal machine befriends a nine-year-old boy and ultimately finds its humanity by unselfi...
South Park: Bigger, Longer & Uncut
1999
as Liane Cartman / Sheila Broflovski / Sharon Marsh / Carol McCormick / Wendy Testaburger / Clitoris / Additional Voices (voice)
In this feature film based on the hit animated series, the third graders of South Park sneak into an R-rated film by ultra-vulgar Canadian television ...
Scooby-Doo's Greatest Mysteries
1999
as Daphne (voice)
SCOOBY-DOO fans have spoken! 4 of SCOOBY-DOO'S most popular mysteries - selected by the fans themselves - are now available in this fun DVD. Watch as...
Goin' Down to South Park
1999
as Self
A mockumentary/documentary hybrid which covers the actual making of the show South Park but with a fictional spin, apparently spoofing similar such sh...
Scooby-Doo on Zombie Island
1998
as Daphne Blake (voice)
After going their separate ways, Scooby-Doo, Shaggy, Velma, Daphne, and Fred reunite to investigate the ghost of Moonscar the pirate on a haunted bayo...
Mulan
1998
as Additional Voices (voice)
To save her father from certain death in the army, a young woman secretly enlists in his place and becomes one of China's greatest heroines in the pro...
Batman & Mr. Freeze: SubZero
1998
as Barbara Gordon / Batgirl (voice)
When Mr. Freeze kidnaps Barbara Gordon, as an involuntary organ donor to save his dying wife, Batman and Robin must find her before the operation can ...
Annabelle's Wish
1997
as Hens (voice)
Annabelle - a calf who has a special wish for Christmas - wants to be a reindeer and help Santa Claus drive his sleigh as he delivers his presents! An...
Hercules
1997
as Earthquake Lady (voice)
Bestowed with superhuman strength, a young mortal named Hercules sets out to prove himself a hero in the eyes of his father, the great god Zeus. Along...
The Kitchen Casanova
1996
as Doris (voice)
Casanova prepares for his dinner date with Doris, however nothing goes according to plan.
The Hunchback of Notre Dame
1996
as Quasimodo's Mother (voice)
Isolated bell-ringer Quasimodo wishes to leave Notre Dame tower against the wishes of Judge Claude Frollo, his stern guardian and Paris' strait-laced ...
The Bears Who Saved Christmas: Christopher & Holly
1994
as Holly (voice)
Two teddy bears attempt to save Christmas for two children when their human family becomes stranded in an abandoned cabin over Christmas.
Beauty and the Beast
1991
as Bimbette (voice)
Follow the adventures of Belle, a bright young woman who finds herself in the castle of a prince who's been turned into a mysterious beast. With the h...
The Secrets of the 'Back to the Future' Trilogy
1990
as Young Girl Voice
The Secrets of the Back to the Future Trilogy was a program hosted by Kirk Cameron. The show answered questions that Back to the Future fans sent in b...
Return Engagement
1978
as Mary
A live-theater production in which Elizabeth Taylor stars as Emily Loomis, a professor of ancient history at a small California college, who reluctant...