|Born:||September 14, 1914|
|Birthplace:||New York City, New York, United States|
|Deathplace:||New York City, New York, United States|
Born Margaret O'Regan in New York City, the daughter of first-generation Irish parents, she was the original "Mama" in Bye Bye Birdie, starring opposite Dick van Dyke on Broadway, and garnering excellent reviews. She lost the film role to another Irish-American actress, Maureen Stapleton.
She also appeared on Broadway in Carousel, Paint Your Wagon and Funny Girl (as Fanny Brice's mother); which role she recreated in the film version and was nominated for both a Tony Award and an Academy Award for her performances on Broadway and on film. She did not appear in Funny Girls sequel, Funny Lady.