Career
Her father, John B. O'Hara, was a salesman, and her mother, Edith (née Hopkins), was a journalist and drama teacher, who founded and continues to run the storied 13th Street Repertory Company in New York City. Her sister is actress Jenny O'Hara, and her singer/guitarist brother Jack O'Hara, grew up amid their mother's pursuit of a theatrical career. Edith O'Hara directed a children's theater in Warren, where the two daughters occasionally acted.
Jill studied at the HB Studio in Greenwich Village. O'Hara created the role of Sheila in the original Off-broadway production of Hair in 1967. In 1971 she performed off-Broadway in Henrik Ibsen's play, The Master Builder. in 1968.
O'Hara has released albums of her own songs and recordings and has performed her own cabaret shows.
