Adam Lamberg
Lamberg achieved teen fame for his role as Gordo in the Lizzie McGuire series and was touted to reprise his role in the reboot of the same name, until it was ultimately axed. Since Disney he appeared in Lionel in When Do We Eat? and Reggie in Beautiful Loser. After these roles, he had a change in career direction, going on to work as a writer.
Mary Kate & Ashley Olsen
The Olsen twins found initial fame on Full House, after which they formed their own company named Dualstar Entertainment. This company was where the twins starred in various films such as Passport to Paris, Winning London, Holiday in the Sun, Getting There, and more. After eventually retiring, the twins founded luxury apparel company, The Row.