Robert Downey Jr.
One of the most famous actors, Robert Downey Jr. had serious problems due to drug and alcohol abuse in the past. He encountered legal issues because due of his addiction. He was arrested multiple times for drug possession, sentenced to prison after he got into a neighbor’s house and passed out on his bed. Moreover, he was fired from several jobs.
Eventually, he was checked into rehab. His wife also helped him with this turning point and, according to an interview she gave for Harper’s Bazaar, Downey Jr. quit drugs in 2003.