 The third and final season of "Flapjack" began on July 5, 2010 with "Careful What You Fish For/Mayor May Not", and ended on August 31, 2010, with "Catch Me If You Candy/Fish Out of Water".Series creator Thurop Van Orman and his son Leif Van Orman guest starred as live action K'nuckles and Flapjack in the series finale.This is the shortest season of the series, counting only 6 half-hour episodes.