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

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

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

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

"Big Brother" airs from 8-9:30 p.m. ET Sunday. Sunday's episode will last 90 minutes, from 8-9:30 p.m. ET. In addition to ...

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

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

Rachel Reilly and Brendon Villegas met on 'Big Brother 12' and built a lasting marriage after winning fans with their ...