The Saboteur was the twist of Big Brother 12. The Saboteur was to wreak havoc on the houseguests by sabotaging a group, an individual, or the house as a whole by causing paranoia or physically sabotaging the game. The Saboteur would be granted $50,000 if he or she made it to the half-way point in the game, five weeks, undetected. The first Saboteur was Annie Whittington and the second Saboteur was Ragan Fox. The Saboteur communicated to the houseguests through the television in the living room while disguised behind static and appeared only as a silhouette. The Saboteur would threaten the houseguests and warn about upcoming sabotage.
Annie Whittington was the first evicted houseguest. Had she made it to Week Five, she would have collected $50,000 for being the Saboteur. However, she was evicted after committing only three acts of sabotage. The houseguests did not suspect her as the Saboteur when they evicted her, though she was one of the three people thought possible of being the Saboteur, the others being Brendon and Andrew.
The Saboteur 2.0 was an America's Choice vote. America voted for Ragan Fox, with Enzo coming in second place had Ragan denied the offer. Ragan was to commit three acts of sabotage for two weeks, and if he remained in the house, he would receive $20,000 as a reward. Ragan successfully completed his two week reign of treachery and won the prize money. The houseguests did not suspect Ragan and did not seem to invest any anger toward the Saboteur. The houseguests were very suprised to see he was the saboteur after he was evicted 5th place
Other house guests that were initially considered by the house as saboteurs include Eric Stein, America's Player from Big Brother 8, Zach Rance, speculated saboteur from Big Brother 16, and Team America, they were given missions from America to sabotage the season.