Peggy Cass (May 21, 1924 - March 8, 1999) was an actress and comedienne.
She was best known for her performance as Agnes Gooch in Auntie Mame on both Broadway and in the film version (1958), a role for which she received an Oscar nomination for Best Supporting Actress and won the Tony Award for Best Supporting Actress for the role. Upon achieving acclaim for her role as Agnes Gooch, Cass recounted how she felt a high for the acclaim one night when she approached the theatre where "Auntie Mame" was playing, but the lights were out in the "C" of her last name lighting her, "Peggy -ass." According to Jack Paar in retrospect, he ruined Cass's Oscar chances by lobbying too much for her on his enormously popular TV show.
In the early 60s, Peggy starred in a syndicated sitcom co-starring the Marquis Chimps, a chimpanzee showbiz troupe. The Hathaways was not a success.
She was also a regular panelist on the television game show "To Tell the Truth".
She died of heart failure in New York City in 1999 at the age of 74 at the Memorial Sloan-Kettering Cancer Center, which may indicate that she was receiving treatment for cancer at the time of her death. She is survived by her widower, Eugene Feeney. They had no children.