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

F loaters, grab a life vest! Rachel Reilly made her triumphant return to Big Brother during Thursday's Season 27 premiere.

In announcing the “Summer of Mystery” theme, CBS teased that Big Brother 27 would introduce a surprise “Mystery Houseguest” ...

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

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

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

The first person to enter the Big Brother house has never won the game, but that curse may be broken with this Big Brother ...

A Big Brother legend entered the house in season 27's premiere, and ahead of their time in the BB house, they share a ...

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

In the weeks leading up to the premiere of 'Big Brother' 27, CBS teased a 17th mystery houseguest. The identity of that ...

Fans and Big Brother houseguests alike were amazed by Rachel Reilly's dramatic appearance on the first episode of Season 27.

Grab a life vest, floaters, because look who just resurfaced back in the Big Brother house.