Here’s the scoop: The Big Brother 27 mysterious 17th houseguest has officially stepped foot inside the house—and the cast’s jaws dropped. Entertainment Weekly snapped exclusive photos of their stunned reactions:
- Ava looks shell‑shocked behind a hippie-style hat.
- Morgan throws an emphatic arm gesture, scrambling to figure it out.
- Zach literally jumped out of his seat—either in shock or aiming for a better camera moment.
- Vince is comic-book dramatic, stretching out to “box out” the competition.
- Ashley is frozen with mouth agape, full surprise mode
Plus, Julie Chen Moonves teased: “When I was told who this person is, I had to expect the unexpected…I never expected that person. … That person is also very polarizing.”
On top of all that, the premiere dropped a cryptic visual clue involving keys and maybe the word “reception” to tease the reveal.
Read More: Big Brother 27 Full Cast Revealed Ahead of Premiere Week
So yes, FOMO is real—photos are already out, but the mystery character hasn’t been officially revealed yet. Tune in to the 90-minute premiere tonight, July 10 (CBS at 8 PM ET), to see who it is.
Curious theories swirling? I’ve heard everything from “a vet from another reality show” to “a polarizing influencer” as guesses—and the clue seems to lean toward something hotel‑ or key‑themed. Want to dig into the fan theories or clues next? Let’s go!
See Photos below:
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