T hursday's season premiere of Big Brother 27 ended with the shocking return of, as a fellow houseguest proclaimed, one of the show's "Mt. Rushmore" stars: Rachel Reilly, who returned to the game 14 ...

Rachel Reilly is back in the Big Brother house, and fans are either cheering or ready to change the channel. The Season 13 ...

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

Men over the age of 50 in Big Brother are often a crapshoot. It can be hard for them to warm up to a house full of people ...

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

Big Brother's Julie Chen Moonves was 'kidnapped' during the season 27 premiere twist involving new villain The Mastermind ...

Oh, summer hasn't officially arrived until "Big Brother" has arrived and it's here. The CBS reality competition series is celebrating 25 ...

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

Vince secures the first Head of Household title after a challenge win, while players are left guessing who among them is secretly working with the Mastermind.

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

Before the season 27 premiere, many fans speculated that the mystery houseguest could be anyone from Celebrity Big Brother UK star JoJo Siwa to a Big Brother newcomer like Tom Sandoval from Vanderpump ...