As Big Brother Season 27 gears up to premiere on July 10, fans are buzzing with excitement and speculation over the identity of the elusive 17th houseguest. CBS has been teasing a “mystery houseguest” described by host Julie Chen Moonves as “very polarizing,” but the network is keeping their identity tightly under wraps—at least until the premiere episode.
The confirmed cast of 16 includes diverse contestants like an aura painter, a college sports podcaster, and an AI consultant, ranging in age from 22 to 50. But it’s the hidden 17th player who has fans across social media analyzing every clue.
Here are the top fan theories:
Rachel Reilly:
The Season 13 winner and recent The Traitors contestant was the first rumored mystery houseguest. Janelle Pierzina, a Big Brother veteran and Rachel’s friend, hinted at Rachel being in sequester, sparking intense fan debate. However, Janelle later clarified Rachel is not sequestered and was dealing with a family emergency.
Angela Murray:
The controversial fan favorite from Season 26 known for her bold gameplay and memorable antics has been unusually quiet online. Fans have scrutinized her social media activity, theorizing she might be the mystery guest given her competitive spirit and recent silence.
Vanessa Rousso:
Considered one of the best players to never win, Vanessa’s name has gained traction thanks to a poker-themed CBS teaser involving a card and a hat—symbols linked to her background. Fans are excited about the possibility of her returning to shake up the game.
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Cody Calafiore:
Winner of Big Brother 22, Cody’s silhouette appears in one of CBS’s Instagram clues. Some fans support his return, though others feel he’s too recent a winner to come back so soon. Alternative guesses include former players Ian Terry and Will Kirby, but both seem unlikely due to other commitments.
The mystery remains unresolved as fans continue to debate and anticipate the big reveal during the Season 27 premiere, titled Big Brother: A Summer of Mystery.
Who do you think the 17th houseguest will be? Join the conversation in the Gold Derby forums and share your predictions!
