X Factor stars Jake Quickenden and Alexandra Burke will also be put through their paces alongside Olympic Gold medallist James Cracknell.
The 2021 line-up is completed by Paralympic athlete Aled Davies, former Love Island star Wes Nelson and BMX and track world champion Shanaze Reade.
Over eight days, the 12 celebrities will be put through a series of gruelling tasks and interrogations that will test them both physically and mentally.
Each will confront surprising truths about themselves, to discover their true self but not everyone will have what it takes to make it to the end of this unique version of SAS selection.
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