Big Brother 2025: Premiere Date, Confirmed Cast & Game-Changing Twists Revealed

Big Brother fans, get your live-feed refreshments ready: CBS has officially locked in Thursday, July 10 2025, for the 90-minute premiere of Big Brother Season 27, the network’s milestone summer reality series that superfans are already dubbing “Big Brother 2025.” The premiere airs at 8 p.m. ET/PT on CBS and will stream simultaneously on Paramount+, with episodes expanding to 90 minutes three nights a week throughout the season. Casting director Jesse Tannenbaum opened online applications earlier this spring, confirming that the show is hunting for “big gamers with bigger personalities” and that all applicants must be 21 or older by June 1 2025. Producers are already combing through thousands of audition tapes, and in-person open-call events are rolling out across major U.S. cities through late April. Historically, CBS releases the final houseguest list one week before move-in, so expect the full Season 27 cast reveal right after Independence Day weekend. While CBS keeps twists under lock and key, insiders hint at a “Supersized Summer” theme that could extend the game beyond the usual 82-day run and bring back the beloved Battle Back arena. Rumors also swirl about live-audience eviction nights returning for the first time since pre-pandemic seasons, a move that would restore the electric, studio-crowd energy many viewers have missed. Long-time host Julie Chen Moonves is confirmed to return, teasing on social media that “new rooms and brand-new powers” await inside the Big Brother house. Prize money remains $750,000, but producers are said to be “exploring performance-based bonuses” tied to weekly competition wins, potentially adding a strategic wrinkle to HOH and veto decisions. Expect 24/7 live feeds to stream exclusively on Paramount+ again, with an enhanced multiview option that lets subscribers watch four camera angles at once. Paramount executives say the platform will drop an extended digital “Night Zero” episode showing the cast’s first champagne toast and bedroom scramble immediately after the televised premiere. For fans plotting season-long watch parties, here are the key dates: • Wednesday, July 2 – Official cast bios and interviews released. • Thursday, July 10 – Two-hour move-in special airs on CBS (8–10 p.m. ET/PT). • Friday, July 11 – 24/7 live feeds go live just after the West Coast broadcast. • Sunday, August 24 – Halfway Party episode traditionally marks Day 40. • Thursday, September 25 – Expected live finale (pending any extended-season twist). Social strategy remains crucial: producers confirm the return of the fan-voted “America’s Favorite Houseguest” prize, worth $50,000. TikTok, X (formerly Twitter), and Instagram Reels will once again host weekly “DR Leaks” to boost fan engagement, and superfans can anticipate the #BB27 hashtag dominating trend charts nightly. How to apply for a future season? The casting portal at BigBrotherCasting.tv stays open year-round, and producers stress that early submissions get the longest look. Hopefuls should submit a 2-minute video, three recent photos, and complete a detailed questionnaire covering strategic gameplay preferences, alliance history, and social-media presence. Whether you’re here for blindsides, showmances, or pure summer escapism, Big Brother 2025 promises fresh faces, higher stakes, and more live-feed drama than ever. Bookmark this page for ongoing cast updates, spoilers, and eviction-night recaps as we countdown to move-in day—because in the Big Brother house, expect the unexpected.