Here’s Your Favorite Child Star Who are All Grown up, Then&Now

23. Kenan Thompson

In 1994, Kenan Thompson made his debut as one of the original cast members of All That.

Kenan Thompson took his sketch-comedy skills to NBC's Saturday Night Live in 2003, and never looked back. As of 2020, he has been with the show for 17 seasons and is the longest-tenured SNL cast member of all time.