Challenger was an Australian children's game show that aired on the Nine Network in 1997 and 1998. The first host was Diarmid Heidenreich, famous for playing Dougie the pizza delivery guy in Pizza Hut commercials in the mid-1990s. After he left the show in early 1998 he was replaced by hosts and Zoe Sheridan. They filmed 265 episodes before the show was superseded by the return of Now You See It.