Jayne Middlemiss, Colin Murray, Wendi Peters, Simon Shepherd, Janet Ellis, Deena Payne, Iwan Thomas, Rav Wilding, Pete Waterman, Stephen K. Amos, Gemma Bissix, Shirley Robertson, Ian Bleasdale, Paul Martin, Tracy-Ann Oberman, Brian Moore, Saira Khan, Rosie Boycott, Michael Obiora, Joel Ross, Shobna Gulati, Dennis Taylor, Siân Lloyd, Jan Leeming and Joe Swift. There was also a week of Comeback contestants featuring Joe McGann, Marie Helvin, Linda Barker, Claire Richards, Rowland Rivron, Ninia Benjamin, Steven Pinder, Wendi Peters, Helen Lederer, Tony Hadley, Martin Hancock and Jeff Green

The six best celebrity cooks remain, but at the end of the day two will be sent home for good. They must cook a two-course meal for 30 schoolchildren, and then make the perfect roast dinner to show judges John Torode and Gregg Wallace that they deserve to stay in the competition.

The four semi-finalists are sent to some of London's best restaurants to fine tune their individual cooking styles - before coming back to the studio to show judges John Torode and Gregg Wallace exactly what they've learnt. And they must then take on the challenge of being the sole caterers at an exclusive society dinner.

The four semi-finalists must cook their best two-course meal to impress three of the country's most respected food critics. And the pressure is really on as at the end of the show, judges John Torode and Gregg Wallace decide which one of the celebrities must leave the competition.