Teri Hatcher, Alan Carr and Ruth Davidson for Celebrity Bake Off

American actress Teri Hatcher, comedian Alan Carr and leader of the Scottish Conservatives Ruth Davidson are among the stars taking part in The Great Celebrity Bake Off.

The special edition of Bake Off in aid of Channel 4’s charity TV drive Stand Up To Cancer will see judges Paul Hollywood and Prue Leith return alongside presenters Noel Fielding and Sandi Toksvig.

Along with former Desperate Housewives star Hatcher, British comic Carr and politician Ms Davidson, pictured, 17 other famous faces will also tackle tricky challenges in the baking tent.

The other confirmed star contestants include comedians Tim Minchin, Aisling Bea, Lee Mack, Joe Lycett and Harry Hill, TV presenters Stacey Solomon, Melanie Sykes and Bill Turnbull, writer and actress Roisin Conaty and Kaiser Chiefs star Ricky Wilson.

Also taking part are Countdown host Nick Hewer, actors Martin Kemp and Griff Rhys Jones, Made In Chelsea star Jamie Laing, singer Ella Eyre, Paralympic gold medallist Kadeena Cox and Diversity dancer Perri Kiely.

The charity Bake Off will take place across five episodes, with each instalment seeing four stars battle it out over three rounds in a bid to be named star baker. As in the regular series, contestants will take part in a signature challenge, a technical challenge and the grand finale, the showstopper.