'Big Brother' Season 23 Cast Member Tests Positive for COVID-19 Ahead of Premiere
By Philiana Ng CBS Big Brother is making a last-minute cast change. Season 23 houseguest Christie Valdiserri, who CBS revealed last Thursday as one of the 16 cast members entering the house, will no longer participate this summer after testing positive for COVID-19 just days before the new cycle is set to kick off. Instead, new houseguest Claire Rehfuss will take Valdiserri's place during Wednesday's 90-minute live premiere. Valdiserri, who has alopecia, shared an emotional video message on Monday revealing her positive test and explained why s...