Rachel Riley

Rachel Annabelle Riley is a British television presenter. She co-presents the Channel 4 daytime puzzle show Countdown and its comedy spin-off 8 Out of 10 Cats Does Countdown. She is a mathematics graduate. Her television debut came when she joined Countdown aged 22. With an interest in popularising mathematics and the sciences, she has since co-presented The Gadget Show on Channel 5 and It's Not Rocket Science on ITV. She was also a contestant on the BBC celebrity dance show Strictly Come Dancing in 2013.

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Rachel Riley and Pasha latest news: Pasha’s shock response to Rachel’s weeing in the shower

Countdown's Rachel Riley admits she urinates in the shower

Countdown's Rachel Riley admits she wees in the shower

Rachel Riley and Stephen Graham make New Year's Honours List

Lionesses lead the pride in New Year Honours list alongside Rachel Riley and Brian May

Countdown star Rachel Riley made MBE for her Holocaust campaign work

Rachel Riley holds back giggles as she is forced to spell out X-rated word on Countdown board

Rachel Riley says becoming a mum DIDN'T quash daredevil impulses because she wasn't reckless before

Rachel Riley departs Countdown studio in Manchester with her mum Celia

Rachel Riley's dad records 'every episode' of Countdown says her co-star Susie Dent

Rachel Riley holds back giggles after spelling out phrase on Countdown

Rachel Riley looks incredible as she puts on very leggy display on Countdown

Rachel Riley looks typically chic in a floral print shirt dress as she leaves Countdown

Rachel Riley catches the eye in bold red and black zigzag patterned mini dress

Rachel Riley shares clip from 2013 Strictly stint after claiming show gave her PTSD

Rachel Riley is knocked over by her daughter Maven, two

Rachel Riley dons a red floral midi dress as she departs Countdown studios after filming in Salford

Rachel Riley cuts a stylist figure in a floral pink dress as she departs the Countdown studios

Rachel Riley shows off her summer style in a floral patterned jumpsuit after filming Countdown

Rachel Riley nails summer chic as she presents Scala Radio show