Fox is combating his incurable disease on his own. “Our foundation directs more money towards Parkinson’s research than the federal government,” Fox, 64, said of his Michael J. Fox, best known for his leading role in Back to the Future—whose villain Biff is notoriously based on Trump—has become the leading figure in the fight to cure Parkinson’s disease. His namesake foundation has funded more than $2.5 billion in Parkinson’s research since its founding in 2000. “I had no idea Parkinson’s would take as much from it as it would,” Fox said in an interview for the show.