36. Taran Noah Smith
Most will probably recognize him as Mark from the ’90s sitcom Home Improvement. At the time of assuming the role in the show, Taran Noah Smith was just 7. By the time the show came to a halt, he was 16—and thoroughly finished with acting. He wanted to seek out a new identity.
In 2001, when he was only 17, he married a woman named Heidi van Pelt, who was 33 at the time. She was a vegan, and Smith soon found himself engrossed in the plant-based way of life. That led to the establishment of a brand of vegan cheese products, called Playfood. The two have since gone through a messy divorce and last that was heard of him, he was that he was volunteering with an art organization and working as a captain of charter boats. He has also reportedly quit acting for good.