14 Celebrities Who’ve Had Life Threatening Diseases 

2. Michael J. Fox

He took the world by storm as a teenager in Back to the Future and Teen Wolf but since then his career has been shadowed by Parkinson’s disease. The disease forced him to retire from acting when his symptoms worsened, even though he has since learned to live with it and even successfully returned to acting.

Michael J. Fox is also an advocate for finding the cure to this disease and he is the founder of Michael J. Fox Foundation that aims at the same goal – helping the research for finding the cure.