Rachel Riley (born 11 January 1986 in Paddington, London) is a British 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 nearly four years before Riley was born) from the 60th series onwards. Jeff Stelling is the chief presenter and Riley does what Vorderman used to do with the letters and numbers.
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