- Played David Birney's character's Jewish mother in Bridget Loves Bernie (1972) on TV, although she was not Jewish in real life (nor is David Birney).
- She played the role of Dolly Levi only once while understudying Ginger Rogers, who refused to miss performances; nevertheless, Osterwald played the role 121 times while understudying the other actresses who played Dolly.
- Attended Catholic University U.S.A. in Washington, D.C.
- She was a lifelong conservative Republican.
- On December 22, 2020, she was honored with a Sketch of the Day caricature on the website, Star Portraits.
- On May 29, 2021, she was recognized with a Sketch of the Day caricature on the website, Star Portraits.
- Upon her death, she was cremated and her ashes returned to her son.
Contribute to this page
Suggest an edit or add missing content