The new season of the hit reality competition series "Big Brother" includes new elements including the introduction of a mysterious masked visitor with a secret accomplice and an unknown houseguest to be revealed sometime during the season.

These 16 houseguests, plus a mysterious additional player, will be moving into the famous “Big Brother” house for a summer filled with competitions, alliances and back stabbing.

Big Brother follows a group of people living together in a house outfitted with more than 100 cameras and 100 microphones, recording their every move 24 hours a day. Each week, someone will be voted out of the house, with the last remaining Houseguest receiving the grand prize of $750,000.

According to host Julie Chen Moonves, a fan-favorite twist will be returning for Big Brother 27 to challenge the houseguests once again.

The houseguests of ‘Big Brother’s 27th season were unveiled shortly before the premiere! Get to know each of them and their motivation in joining the game.

The cast of "Big Brother" Season 27 has been revealed — with one "Mystery Player" set to make a surprise entrance.

I'm a Big Brother fan, and like Tucker from BB26, I also "really like puzzles!" Especially crossword puzzles. So naturally, it's my idea of a good time to put together a crossword puzzle that's solely focused on Big Brother (U.S. edition).