Big Brother Season 27: Theme, Cast, Twists, and What to Expect
The new season premieres on Thursday, July 10, 2025, with a special 90-minute episode
Big Brother is back for its 27th season, and this summer promises to be unlike any other. With a brand-new theme, a diverse cast, and more twists than ever, CBS is inviting fans into a season built around mystery, manipulation, and non-stop drama.
The new season premieres on Thursday, July 10, 2025, with a special 90-minute episode airing from 8:00 to 9:30 p.m. ET/PT. From there, the show follows its classic weekly rhythm: Sundays and Wednesdays for competitions and game updates, and Thursdays for the live evictions.
Viewers can catch the episodes on CBS, or stream them live and on-demand via Paramount+, depending on their subscription tier. For the superfans, live feeds will be available starting July 13 on Paramount+ and Pluto TV.
Entertainment Weekly has released the first key art for Big Brother 27.
“The keys to unlocking unexpected mysteries in the Big Brother house are right in front of you!” Julie Chen Moonves told EW. “Don’t be left in the dark this summer. Be sure to tune in!» #BB27 pic.twitter.com/Hf5h8N5bre
— Reality TV News/Updates (@Realitytv__fan) June 16, 2025
This year’s theme is “A Summer of Mystery,” and the Big Brother house has been completely transformed into a lavish, theatrical space called Hotel Mystère. It’s designed with a vintage hotel feel, complete with bunk beds (a callback to Season 1), hidden passageways, and secret rooms that are sure to stir up paranoia and strategic gameplay.
Host Julie Chen Moonves has teased that the house itself will be one of the biggest players in the game.
They’ve made the clue promo a bit longer by teasing us about the mystery houseguest getting « involved in an alliance betrayal » #BB27 pic.twitter.com/uPCmsETd1B
— Terry #BB27 (@HOH4Ever) July 5, 2025
Who’s in the House?
There are 17 houseguests this season—16 have been announced, and one remains a surprise. The cast includes a wide mix of personalities and backgrounds:
- A carpenter from Texas
- A professional bull rider from Oklahoma
- An aura painter from New York
- A Dungeon Master
- A gamer
- A fine dining server
- A marketing manager
- A lawyer
- An unemployed contestant… and more
This cast brings age, gender, and regional diversity, setting the stage for unpredictable alliances and plenty of drama. The 17th houseguest, however, is being kept secret until premiere night and has been described as “epic” and “polarizing,” fueling speculation about a possible returning player or celebrity wildcard.
What Twists Can We Expect?
Season 27 is packed with twists designed to shake up the usual flow of the game. Among them is the return of the three-nominee structure, which raises the weekly stakes. There’s also a revamped BB Blockbuster twist, giving players one last chance to shift the balance of power. As teased earlier, a masked visitor and a secret accomplice will stir up even more mystery and paranoia inside the house.
On top of that, hidden challenges, secret exits, and unexpected rewards are scattered throughout the “hotel,” reinforcing the season’s focus on unpredictability. It’s a bold setup that should satisfy longtime fans eager for fresh surprises.
🚨 | CBS reveal Big Brother US house for Season 27, as they announce Summer of Mystery theme. 🏡
Big Brother 27 premieres July 10 on Paramount+ & CBS. #BB27 #BigBrother pic.twitter.com/a3oI1NwrGm
— BIGBROTHER+ (@itsbbplus) July 2, 2025
What’s at Stake?
The winner of Big Brother Season 27 will take home a grand prize of $750,000—but only after surviving weeks of strategy, alliances, challenges, and evictions in a house full of hidden agendas and unexpected turns.
As Big Brother celebrates 25 years on the air, Season 27 feels like a bold new chapter. Ready to check into Hotel Mystère?