[4] She received national attention in 1952 via an Associated Press story about a five-year-old Pittsburgh girl with a cleft palate who spoke her first words while watching the actress in a pantomime on television.

[10] Other credits include guest appearances on The Twilight Zone, Maude, Dharma & Greg, and Chuck, as well as voice over work for many cartoons.

[citation needed] McCall and Charlie Brill appeared on The Ed Sullivan Show on February 9, 1964, the episode that featured the U.S. television debut of The Beatles.

As the last act to go on before the Beatles' second set, they performed a hastily truncated version of their full act before a studio audience of impatient Beatles fans who showed little interest in their comedy; Brill said that he and McCall "laid the biggest egg of all time".

[15] In January 1961, syndicated newspaper columnist Dorothy Kilgallen reported that the team was "causing quite a stir", emphasizing while exaggerating the partners' discrepancy in height, "Joan being six feet, three inches tall and Mitzi four feet, 10 inches short".

McCall died at Providence Saint Joseph Medical Center in Burbank, California, on August 8, 2024, at the age of 93.