The TV star happily posed for pictures with staff at the M&S Outlet store at Lakeside Village when he popped in to do a spot of shopping.
Lakeside bosses said workers were ‘excited’ to welcome the quiz king through the doors.
Dubbed ‘The Beast’ for his huge size, he became interested in quizzing when working at Butlins, supplementing his income with winnings from the quiz machines.
He appeared on Mastermind in 1999, where his specialist subject was the Olympic Games, has also competed on Countdown and appeared on Who Wants to be a Millionaire? twice, winning £32,000 across two episodes in April 2006.