Trivia

As a child, she lived across the street from Adriana Caselotti, the voice of Snow White. Mary Kay would eventually take over as Snow White's voice for read-along books and commercials after Adriana retired.

Suffered from lifelong depression nobody knew of until after she committed suicide.

Was the original voice for Timmy Turner in the Mes parrains sont magiques (2001)'s "Oh Yeah! Cartoons" shorts. Upon her death, Tara Strong (then Charendoff) took over the role.

Gained popularity for voicing most of the female characters on the TV show South Park (1997) (Stan's, Kenny's, and Cartman's mothers, Wendy Testaburger, Mayor McDaniels, Ms. Crabtree, Principal Victoria, Stan's sister Shelly, and Nurse Gollum).

Died of a self-inflicted gunshot wound to the head.

She was a Trekkie and when she was a child, she and her mother wrote letters to NBC to try and keep the original Star Trek TV show on the air for a third season. She also enjoyed attending Star Trek conventions and was a self-proclaimed, 'geek'.

With a total of eleven, Mary Kay holds the distinction of voicing the most characters in the original Leisure Suit Larry game series.

Was a close friend of Grey DeLisle, who took over voicing Daphne in further Scooby-Doo productions.

First job was a radio commercial for a small home security company on a local radio station back in 1986.

She has appeared in one film that has been selected for the National Film Registry by the Library of Congress as being "culturally, historically or aesthetically" significant: La Belle et la Bête (1991).

Her family were Jewish emigrants from Germany, the Netherlands, and England. Her mother's surname was originally Enoch.

She never had any children during her marriage with Dino Andrade.

She was the second cousin, three times removed, of Samuel Gompers, a cigar maker, labor union leader, and a key figure in American labor history, who founded the AFL (American Federation of Labor).

Bergman had originally been considered to perform "Blame Canada" from South Park, le film : Plus long, plus grand et pas coupé (1999) at the 72nd Academy Awards, which had been nominated for an Oscar, but after her death, the song was instead performed by Robin Williams in tribute to Bergman. The song ultimately lost to Phil Collins' "You'll be in My Heart," from Disney's Tarzan (1999), which started the Collins teasing on South Park.