White was 12 when the show began, but 21 when it ended. Between the ages of 12 and 21, people do some serious changing. Jaleel White, the actor who played Steve Urkel on Family Matters, was no different.

Jaleel White played Steve Urkel in the ABC sitcom Family Matters for nine seasons, but don't expect the actor to revisit the role if it's just a "cash grab."

Jaleel White addressed past claims from 'Family Matters' costars Reginald VelJohnson and Jo Marie Payton that he was 'difficult' to work with as a child