Howard Hughes. (Photo: Archive)
Albert Einstein. (Photo: Archive)
Harrison Ford. (Photo: Archive)
Michael Jackson. (Photo: Archive)
Charlie Sheen. (Photo: Archive)
Cameron Diaz. (Photo: Archive)
Fiona Apple. (Photo: Archive)
Alec Baldwin. (Photo: Archive)
Dan Aykroyd. (Photo: Archive)
Martin Scorsese. (Photo: Archive)
Jessica Alba. (Photo: Archive)
Justin Timberlake. (Photo: Archive)
Leonardo DiCaprio. (Photo: Archive)
Stonewall Jackson. (Photo: Archive)
Charles Darwin. (Photo: Archive)
Ludwig van Beethoven. (Photo: Archive)
Howard Stern. (Photo: Archive)
Stanley Kubrick. (Photo: Archive)
Nikola Tesla. (Photo: Archive)
Katy Perry. (Photo: Archive)
Billy Bob Thornton. (Photo: Archive)
David Beckham. (Photo: Archive)
Donald Trump. (Photo: Archive)
Cole Porter. (Photo: Archive)
Michelangelo. (Photo: Archive)
Woody Allen. (Photo: Archive)
Charlize Theron. (Photo: Archive)
Roseanne Barr. (Photo: Archive)
Penélope Cruz. (Photo: Archive)
Rose McGowan. (Photo: Archive)
Marc Summers. (Photo: Archive)
Jennifer Love Hewitt. (Photo: Archive)
Samuel Johnson. (Photo: Archive)
Howie Mandel. (Photo: Archive)
Kathie Lee Gifford. (Photo: Archive)
These 35 celebrities have obsessive-compulsive disorder. OCD is an anxiety disorder that is characterized by feelings of fear and worry that can only be released by performing some kind of ritual.