I watched Young Sheldon last night on CBS and the kid playing Sheldon does a great job. Someday however, his voice will change, he will grow and that might be the end. I got to thinking which child stars later continued in life to become adult stars as well. Mickey Rooney came to mind first. Shirley Temple as far as I know, was done when she grew up. Ron Howard didn't act but became a director and a good one, and Michael J. Fox wasn't really a child in Family Ties. Can't think of any more. Got any?