8 Out of 10 Cats Does CountdownSeries 19Season 19 · 2020 · 6 episodesEpisodes1Harry Hill, Rose Matafeo, Alex HorneJimmy Carr hosts the classic words and numbers quiz as Sean Lock and Harry Hill take on Jon Richardson and Rose Matafeo, while Alex Horne joins Susie Dent in Dictionary Corner. Rachel Riley looks after the numbers and letters.2Joe Wilkinson, Kiri Pritchard-McLean, The Brett Domino TrioJimmy Carr hosts as Sean Lock and Joe Wilkinson take on Jon Richardson and Kiri Pritchard-McLean. The Brett Domino Trio join Susie Dent in Dictionary Corner.3Richard Ayoade, Katherine Ryan, David O'DohertyJimmy Carr hosts as Sean Lock and Richard Ayoade take on Jon Richardson and Katherine Ryan. David O'Doherty is in Dictionary Corner with Susie Dent, and Rachel Riley looks after the numbers and letters.4Miles Jupp, Sophie Duker, Lee and DeanJimmy Carr hosts as Sean Lock and Miles Jupp take on Jon Richardson and Sophie Duker in the classic words and numbers quiz. Lee and Dean join Susie Dent in Dictionary Corner. Joe Wilkinson is at the numbers board with Rachel Riley.5Kevin Bridges, Victoria Coren Mitchell, Spencer JonesJimmy Carr hosts as Sean Lock and Kevin Bridges take on Jon Richardson and Victoria Coren Mitchell in the classic words and numbers quiz. Spencer Jones joins Susie Dent in Dictionary Corner, and Rachel Riley looks after the numbers and letters.6Harriet Kemsley, Chris McCausland, Nick HelmJimmy Carr hosts as Sean Lock and Harriet Kemsley take on Jon Richardson and Chris McCausland. Nick Helm is in Dictionary Corner and Joe Wilkinson is at the numbers board.Season 1Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9Season 10Season 11Season 12Season 13Season 14Season 15Season 16Season 17Season 18Season 20Season 21Season 22Season 23Season 24Season 25Season 26Season 27Season 28Season 29Season 30