Liz McClarnon, Dan Whiston, Keith Duffy

Atomic Kitten's Liz McClarnon, ice skater Dan Whiston and Boyzone singer Keith Duffy take part in the quiz show, in which contestants answer questions to win turns on an arcade-style machine. Dropping tokens down a choice of four chutes, they hope to knock piles of them off a moving shelf - and the more they gather, the better their chances of collecting the £20,000 prize for their selected charity.