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

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

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

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 ...

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

After much anticipation, Big Brother Season 27 revealed the mystery houseguest. Former contestant and winner of the ...

The “Big Brother” Season 27 contestants better grab a life vest, because Seasons 12 and 13 star Rachel Reilly is checking into the Hotel Mystère — but in a premiere twist, she is ...

Rachel Reilly storms into Big Brother 27 as the mystery houseguest, bringing her signature sass and strategy. “Reality ...

Janelle Pierzina and Rachel Reilly tease Big Brother fans with hints about the mystery houseguest in season 27 ...

Rachel Reilly opens up about returning to Big Brother 27, balancing motherhood, and her plans to compete for the $750,000 ...