Before nabbing a signature role on The Boys, Karen Fukuhara developed a love of acting while working on the Disney Channel ... but she wasn't an actor yet.
Gilligan's Island was a wildly popular show, so much so that creator Sherwood Schwartz already made plans for a show after the island before it was canceled.
Andy Samberg debuted a Beetlejuice impression in Michael Keaton's SNL season 50 episode, but he first tried to get in on the show all the way back in 2006.
Thanks to Supernatural and Gilmore Girls, Jared Padalecki is quite well known, despite not having a ton of credits. But what are his best movie and TV roles?
Howard Wolowitz's father never actually appeared on The Big Bang Theory, but the show's creatives once had their eye on casting a famous musician in the role.
For every child star who transitions into becoming a successful adult actor, there are a bunch who leave Hollywood for normal jobs, even if they were big stars.