Revision as of 11:46, 26 November 2011 by JRTerrier24
|Guest appearances of Mark Durden-Smith|
|First appearance||28 February 2011|
|Last appearance||4 November 2011|
|Episodes with Mark Durden-Smith|
Mark Durden-Smith is a guest on Countdown. He's a TV presenter, and is the son of TV legend Judith Chalmers.