|Guest appearances of Colin Jackson|
|First appearance||17 May 2010|
|Last appearance||12 November 2010|
|Episodes with Colin Jackson|
Colin Jackson is a guest on Countdown. He is the former world record holder of the 110m hurdles. He was the runner-up of the third series of Strictly Come Dancing in 2005, losing partially down to the worst showdance in history which featured two puppets.