Watch: 'Survivor' Season 49 Cast Revealed: Meet the 18 New CastawaysOn Survivor, players simply can't outwit, outplay and outlast the rules of the game. Just 12 hours before the CBS reality competition's upcoming 49th season began filming, the cast's alternates Jason Treul and Michelle "MC" Chukwujekwu were added to the cast as replacements for two existing castaways were pulled from the game at the last-minute. "We always try to remind the audience that the game is also alive for us at all times," host Jeff Probst told Parade of the unprecedented situation in an interview published Aug. 21.