Elizabeth Josephine "Jo" Sullivan (August 28, 1927 – April 28, 2019) was an American actress and singer. She became a musical theatre star with her best known role in the original production of The Most Happy Fella. She was nominated for a Tony Award in 1957. Loesser in Mounds, Illinois.
Loesser died on April 28, 2019 at her home in New York City of heart failure at the age of 91.