Mark won The Apprentice in December last year after going head-to-head with hosiery entrepreneur Bianca Miller, and now he's opened up about what it's really like to work with Lord Sugar.
Speaking to The Sun, Mark said: "He is actually more scary in real life. It's not an act... he isn't pretending to be terrifying."
Another star of The Apprentice is business executive and Lord Sugar's aide, Claude Littner, who puts candidates through their toughest interviews ever in the popular interview round.
However, according to Mark, Claude's sharp putdowns and direct but sometimes harsh approach is just one big act.
Mark said Claude is "the loveliest guy" adding that he is "really supportive and so friendly". Mark concluded: "Maybe I just ruined his cover?!"
Well, yes Mark, maybe you just have!
Lord Sugar picked Mark as winner of The Apprentice after seeing potential in his digital marketing business, Climb Online.
Mark told the newspaper that business is going well with £12,000 profit and 10 members of staff after two-and-a-half months.
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