15. Patty Duke
Role: Portrayed Helen Keller Film: The Miracle Worker (1962) Net Worth: Estimated at $10 million*
Patty Duke rose to stardom for her portrayal of Helen Keller in the critically-acclaimed movie The Miracle Worker, earning an Oscar for her role. Capitalizing on her fame, she continued to appear in various roles and started her own eponymous show, winning three Emmys and two Golden Globes.

Facing a slowdown in her acting career, Duke encountered mental health challenges, receiving a diagnosis of bipolar disorder. She became an advocate and educator on mental health disorders. Duke is the mother of actor Sean Astin and his sister, MacKenzie.