8 Out of 10 Cats Does CountdownSeries 18Season 18 · 2019 · 7 episodesEpisodes1Miles Jupp, Rose Matafeo, Vic ReevesSean Lock and Miles Jupp take on Jon Richardson and Rose Matafeo, while Vic Reeves joins Susie Dent in Dictionary Corner. Hosted by Jimmy Carr, with regular Countdown mathematician Rachel Riley looking after the numbers and letters.2Victoria Coren Mitchell, James Acaster, Morgana RobinsonSean Lock and Victoria Coren Mitchell take on Jon Richardson and James Acaster in the classic panel game. Morgana Robinson joins Susie Dent in Dictionary Corner, with Rachel Riley.3Joe Wilkinson, Sara Pascoe, Sam SimmonsSean Lock and Joe Wilkinson take on Jon Richardson and Sara Pascoe. Sam Simmons is in Dictionary Corner, while maths whizz Rachel Riley looks after the letters and numbers.4Rob Beckett, Alan Carr, Sarah Millican, Nick MohammedSean Lock and Rob Beckett take on special guest team captains Alan Carr and Sarah Millican. Nick Mohammed joins Susie Dent is in Dictionary Corner, while maths whizz Rachel Riley looks after the letters and numbers.5Sara Pascoe, Alan Carr, Tom Allen, Rosie JonesSean Lock and Sara Pascoe take on Alan Carr and Tom Allen, while Rosie Jones is in Dictionary Corner.6Harriet Kemsley, Alan Carr, Catherine Tate, Adam BuxtonSean Lock and Harriet Kemsley take on special guest team captain Alan Carr and Catherine Tate, while Adam Buxton joins Susie Dent in Dictionary Corner7Katherine Ryan, Joe Wilkinson, Adam RichesSean Lock and Katherine Ryan take on Jon Richardson and Joe Wilkinson. Adam Riches as Sean Bean is in Dictionary Corner.Season 1Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9Season 10Season 11Season 12Season 13Season 14Season 15Season 16Season 17Season 19Season 20Season 21Season 22Season 23Season 24Season 25Season 26Season 27Season 28Season 29Season 30