Rachel Johnson is reportedly taking part in the new series of Celebrity SAS: Who Dares Wins.
The Channel 4 reality show typically films a year in advance, and the 2024 series is currently being shot in New Zealand - even though the 2023 series is still to air.
Details of those taking part have been gradually leaked by the press, and The Sun names the latest participant as journalist Rachel, the younger sister of former Prime Minister Boris Johnson.
"Rachel is Channel 4's star signing for SAS," a source told the newspaper. "They hope she will spill the beans about her childhood with Boris during the tough interrogations.
"Rachel is a tough woman and will give it her all. But she had a gilded upbringing and might struggle when it's freezing cold, she has barely slept and is being made to do extreme exercises."
Other celebs thought to be in the lineup include TOWIE's Bobby Norris, Geordie Shore's Marnie Simpson and influencer Bianca Gascoigne.
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