4. Stephen Fry
At 37, Stephen Fry was diagnosed with bipolar disorder after a lifelong struggle with his mental health.
In 2006, years after his diagnosis, the comedian put out the documentary Stephen Fry: The Secret Life of the Manic Depressive to showcase the illness and defeat stigma and prejudice. Fellow bipolar stars Richard Dreyfuss and Carrie Fisher were among the many subjects featured.
"I want to speak out, to fight the public stigma and to give a clearer picture of mental illness that most people know little about," Fry said.