18. Clint Howard
Imagine having a bear as your co-star. Well, that’s what happened to child actor Clint Howard, brother of actor and director Ron Howard. Howard starred in the 1967 to 1969 TV show Gentle Ben as Mark, the friend of a giant black bear. And he continued to act as he grew up, appearing in no fewer than 17 of his big brother’s films.
17. Butch Patrick
Butch Patrick beat off competition from hundreds of other children to play werewolf Eddie Munster on The Munsters. The show ran from 1964 to 1966, but it gained a large fanbase and ensured Patrick remained in the public eye. Throughout his adult life, however, Patrick struggled with drug addiction. In 2011 he was also diagnosed with cancer; thankfully, he’s survived.
16. Valerie Bertinelli
The one-time Mrs. Eddie Van Halen began her acting career at the age of 15 as Barbara Cooper in One Day at a Time from 1975 to 1984. And although her marriage to Van Halen (which took place while she was still on the show) was disastrous, her acting career remained pretty steady after One Day at a Time finished.