'Big Brother' 2021 Contestants - 16 Cast Members Revealed!

Meet the latest Big Brother cast!

The Julie Chen Moonves-hosted 23rd season of the long-running competition reality TV series debuts tonight (Wednesday, July 7), with 16 castmates set to enter the house.

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One previously announced contestant, Christie Valdiserri, will be replaced by a new contestant, Claire Rehfuss, after testing positive for COVID-19.

Last year, CBS pledged that Black, Indigenous and People of Color (BIPOC) contestants would make up at least 50% of its unscripted series’ casts, beginning with the 2021-22 TV season, as reflected in this new season’s casting.

Season 23′s theme is described as “a high-stakes summer full of Big Risks and Big Rewards, where one wrong gamble could cost them everything.”

Big Brother will premiere tonight at 8/7c with a 90-minute episode in which the new group of Houseguests will move into the newly redesigned house. Beginning Sunday, July 11, the show will air on Sundays at 8pm, Wednesdays at 8pm, and Thursdays at 8pm.

Two contestants from Big Brother got married a couple months ago!