Challenge Beasts would have to be Joe and Ozzy. Hands down. If we're thinking of the most iconic contestants, then we just can't miss out the two winners of some amazing seasons. Boston Rob and Amber. Fun fact Robin Amber actually became a couple because of this show and now they have four daughters and are happily married since a very long time, other iconic contestants would have to be Boughty Tony, Immunity Idol King Russell Spencer, et cetera