The first cheesy segment of the season then occurred: An odd man in a red mask appeared on the TV and said he was behind the ...

The most popular pick, handsdown, of who the mystery guest is would be none other than Rachel Reilly. She already made two ...

The 27th season of Big Brother kicks off with a wild premiere that finally reveals who the "Mystery Houseguest" is before ...

As fans streaming Big Brother online for early results of the Week 1 veto competition or a clue at who is going home were ...

Before the season 27 premiere, many fans speculated that the mystery houseguest could be anyone from Celebrity Big Brother UK ...

Rachel Reilly, winner of Big Brother 13, was unveiled as the "mystery houseguest" competing again this summer on season ...

"Big Brother" revealed its mystery houseguest for season 27 Thursday: the legendary Rachel Reilly. Reilly entered the house ...

The latest “Big Brother” season debuted on July 10, and is scheduled to continue airing over the next three months leading up ...

GlobalTV.com The game is afoot! Big Brother’s Summer of Mystery has its 16 new suspects or as we like the call them, the 16 ...

"Big Brother" Season 27 contestants better grab a life vest, because star Rachel Reilly is checking in as the 17th houseguest ...

"Big Brother" is back this summer to celebrate its 25th anniversary ... a secret accomplice and the shocking arrival of a "Mystery Houseguest” whose identity will remain under wraps … at least for now ...

A first look at the 'Big Brother 27' house teases a mystery theme, a 'Mystery Houseguest' and twists that fans won’t see coming ...