Psychologist Ellie, 33, plans to keep her job a secret from her fellow contestants.
“Hopefully I’m going to be able to use all my psychological techniques to play the game as well as possible, whether I’m a traitor or a faithful, whether that’s building up relationships with people or deceiving people and concealing how I really feel,” she said.
“I’m going to be analysing what other contestants are doing and trying to think through what their motivations are for behaving in certain ways.”
Gardener James, 38, believes he could fare well in the castle because he was “mildly successful playing poker” in the past.
“I was even nicknamed The Librarian by a few people because I have this innate ability to read people like a book,” he explained.
And 32-year-old cyber security expert Stephen, from the Outer Hebrides but now based in London, has done the maths and decided he would rather be a traitor than a faithful.
“I can be a bit of a control freak, and I feel like as a traitor, it really is the best way to take control of the game,” he said.
“Your chances of going home are slashed by 50% because you can only go out by banishment. Whereas, if you’re a faithful, you’ve got two chances of being banished or murdered.”