Rob Beckett, Katherine Ryan, Greg Davies

Johnny Vegas and Romesh Ranganathan join host Jimmy Carr and team captains Jon Richardson and Sean Lock for more comic innuendos, unpredictable conundrums and unforgivable puns in the comedy quiz. Josie Long is with Countdown's resident lexicographer Susie Dent in Dictionary Corner, while comedian Joe Wilkinson 'helps' Rachel Riley with her mathematical sums and duties.