• “Big Brother” is back with Season 27—and the mystery has already begun. CBS is teasing a game-changing twist with a secret houseguest, new hidden passageways, and a jaw-dropping hotel-themed house design. Premiering July 10, fans can expect drama, surprises, and high-stakes gameplay in what’s shaping up to be one of the show’s most unpredictable seasons yet.

LOS ANGELES, CA (TDR) — Big Brother Season 27 is about to check in—and the game is already full of secrets. The iconic CBS reality series returns Thursday, July 10, with a 90-minute premiere and an all-new theme: “BIG BROTHER: A Summer of Mystery.” That theme is more than just branding—it’s baked into the gameplay, the design of the house, and even the cast itself.

Meet the New Houseguests

CBS revealed the full cast on July 8, introducing 16 brand-new houseguests ready to compete for the $750,000 prize. This season’s players range from a professional bull rider to an aura painter to an AI strategy consultant, promising a fascinating mix of backgrounds and personalities.

Here’s the full Big Brother 27 cast:

• Adrian Rocha, carpenter
• Amy Bingham, insurance agent
• Ashley Hollis, attorney
• Ava Pearl, aura painter and art instructor
• Cliffton Williams, college sports podcaster
• Isaiah “Zae” Frederich, salesperson
• Jimmy Heagerty, AI strategy consultant
• Katherine Woodman, fine dining server
• Keanu Soto, personal trainer and nutritionist
• Kelley Jorgensen, web designer
• Lauren Domingue, bridal consultant
• Mickey Lee, event curator
• Morgan Pope, gamer and model
• Rylie Jeffries, professional bullrider
• Vince Panaro, unemployed
• Zach Cornell, marketing manager

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The Mystery Houseguest Has Everyone Guessing

Adding to the buzz is the news of a 17th houseguest whose identity remains a mystery. In an interview with Entertainment Weekly, host Julie Chen Moonves dropped a juicy hint: “That person is epic. And that person is also very polarizing.”

Could it be a returning player? A controversial reality TV figure? A celebrity in disguise? CBS is keeping fans guessing—and holding off on revealing the twist until the July 13 episode.

Welcome to Hotel Mystère

Season 27’s house has been reimagined as Hotel Mystère, a vintage-inspired luxury hotel loaded with surprises. Think: sleeper car-themed beds, secret passageways, and a reception wall featuring 75 locked key boxes—some of which will contain “skeleton keys and clues,” according to CBS.

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The mystery theme will be central to the season’s strategy. The network teased a “masked visitor,” a “secret accomplice,” and the shocking arrival of the still-unknown 17th houseguest.

When and Where to Watch

Big Brother 27 premieres Thursday, July 10 at 8 p.m. ET/PT on CBS. New episodes will air three nights a week—Wednesdays (90 minutes), Thursdays, and Sundays (both one hour). Episodes will also stream the next day on Paramount+.

Live Feeds and Streaming Access

Die-hard fans can keep up with the drama 24/7 by tuning into the Big Brother live feeds on Paramount+ starting Sunday, July 13 at 12:30 a.m. ET.

Are you ready to check into Big Brother 27? Who do you think the mystery houseguest could be? Let us know in the comments!

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