Big Brother 27 mystery houseguest Rachel Reilly is married to Brendon Villegas. They have two children - daughter Adora Borealis Villegas and son Adler Mateo.

"So there's going to be a strong reaction in both directions for this mystery Houseguest."Ahead of season 27, here are the 12 best Big Brother seasons to watch, all of which are available to stream on Paramount+.

"Honestly, in my head, I am the greatest 'Big Brother' player this world has yet to see. I'm ready to prove it."

As Big Brother celebrates 25 years on air, here is a look back at the wildest moments from the show’s dramatic history.

"Big Brother" is set to premiere this week. For Season 27 of the hit reality competition series, the official theme will be "Big Brother: A Summer of Mystery," CBS confirmed Wednesday, July 2.

A stage adaption of George Orwell’s dystopian novel has been packing them in, as its themes – newspeak, thought police and constant surveillance – hit home.

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.