Liz Johnson

30-year-old Paralympian Johnson swam for Britain in Bejing, Athens and London. Now we're set to find out how well she'll fare on dry land.

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Tommy Cannon

One half of comedy double act Cannon & Ball, Tommy is no stranger to reality TV, having appeared on I'm a Celeb and Coach Trip.

Marcus Butler

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Vlogger Marcus has over 4 million subscribers to his main YouTube channel, where promisingly he can be seen cooking up healthy lunches.

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