Sfgate reports that former 'Kenan & Kel' co-stars Kenan Thompson and Kel Mitchell will reunite on Nickelodeon for a future episode of the revived game show ?Double Dare.? In addition to their own show, the duo also starred on the big screen in the comedy movie ?Goodburger,? which was based off a sketch from their Nickelodeon improv program 'All That'. Mitchell has since stayed largely out of the public eye, while Thompson has been a mainstay on ?Saturday Night Live,? where he has been a cast member since 2003.