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

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

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

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

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

Rachel Reilly's shocking return to "Big Brother 27" comes with a terrifying warning that has new houseguests scrambling for safety.

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

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

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

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

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

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