Sean Lock was an English comedian and actor. He began his comedy career as a stand-up comedian, won the British Comedy Award in 2000 in the category of Best Live Comic, and was nominated for the Perrier Comedy Award.

Sean Lock plays as Self - Team Captain in 8 Out of 10 Cats Does Countdown.
Sean Lock is the top #1 member of the cast and appears in 179 episodes.

Susie Dent plays as Herself in 8 Out of 10 Cats Does Countdown.
Susie Dent is the top #2 member of the cast and appears in 125 episodes.

Jon Richardson plays as Self - Team Captain in 8 Out of 10 Cats Does Countdown.
Jon Richardson is the top #3 member of the cast and appears in 91 episodes.

British stand-up comedian, television host and actor, known for his signature laugh, deadpan delivery, dark humour, and heckler interaction. He is also a writer, actor, and presenter of radio and television.

Jimmy Carr plays as Self - Presenter in 8 Out of 10 Cats Does Countdown.
Jimmy Carr is the top #4 member of the cast and appears in 18 episodes.

Joe Wilkinson plays as Postman Pat in 8 Out of 10 Cats Does Countdown.
Joe Wilkinson is the top #5 member of the cast and appears in 12 episodes.

Rachel Annabelle Riley (born 11 January 1986 in Paddington, London) is an English television presenter. Since 12 January 2009 she has been the co-host of Countdown. She replaced Carol Vorderman (whose twenty-six years on Countdown began just over three years before Riley was born) from the 60th series onwards. Jeff Stelling is the chief presenter and Riley does the letters and numbers.

Rachel Riley plays as Self in 8 Out of 10 Cats Does Countdown.
Rachel Riley is the top #6 member of the cast and appears in 7 episodes.