<human>:  Who is the most famous person with an anxiety disorder?
<bot>: That would be the actor, Robert Downey Jr. Downey Jr. was diagnosed with Obsessive Compulsive Disorder (OCD) in his youth, and has been open about his struggle with it. He has also spoken publicly about his struggle with drug and alcohol addiction. He has been open about his struggles with addiction, and has been sober for more than 20 years.