A professional gamer, an aura painter, a bridal consultant, and a professional bullrider are just some of the people who will be competing for the $750,000 grand prize this summer. The contestants’ quirky careers make them sound a bit like suspects in a murder mystery, which is perfect for the “Big Brother 27” theme: A Summer of Mystery.

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.

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