8 Out of 10 Cats Does Countdown: Season 17, Episode 3

17 - 3: Joe Wilkinson, Richard Ayoade, Aisling Bea, Tom Allen

Sean Lock and Joe Wilkinson take on guest captain Richard Ayoade and Aisling Bea. Plus special guest Tom Allen joins Susie Dent in Dictionary Corner, while maths whizz Rachel Riley looks after the numbers.