[2] Bennett worked as a character actress on stage, on radio,[3] and in several film and television programs,[4] including The George Burns and Gracie Allen Show, Adventures of Superman, and Dragnet.

She recorded voices for UPA, Warner Bros., Metro-Goldwyn-Mayer, Format Films' The Rocky and Bullwinkle Show (in 1959, for three of season 1 editions of the segment "Fractured Fairy Tales"),[5] and Hanna-Barbera Productions.

Bennett continued with voice work into the 1990s, including a role as the voice of Aunt May Parker in the animated TV series Spider-Man after Linda Gary's death in 1995.

[6] Apart from her acting career, Bennett worked as a realtor and an agent for other actors.

[7] Bennett died of complications from COVID-19 at Cedars-Sinai Medical Center on March 31, 2020, aged 88, during the COVID-19 pandemic in California.