Amongst the guests on David Mitchell's team are Joan Bakewell, Susan Calman, Mel Giedroyc, Jason Manford, Sarah Millican, Stephen Mangan, Dermot O'Leary, Richard Osman, Jon Richardson, Greg Rutherford, Isy Suttie and Kirsty Young.
Guests joining Lee Mack include Charles Dance, Warwick Davis, Matt Dawson, David Harewood, Paul Hollywood, Carol Kirkwood, Bob Mortimer, David O'Doherty, Joanna Scanlan, Gok Wan, Henning Wehn and Josh Widdicombe.