Presenter Gail Porter, Red Dwarf star Danny John-Jules, food writer Prue Leith and BBC Breakfast's Mike Bushell take on the Mastermind chair answering questions on number one singles, the choreographer Bob Fosse, wartime food and Alan Partridge.

Comedian Josh Widdicombe, athlete-turned-commentator Katharine Merry, Emmerdale actress Sian Reese-Williams and wildlife presenter Nick Baker take on the Mastermind chair answering questions on Blur, Aston Villa, the sitcom Black Books and Alfred Russel Wallace.