TV Celebrity Masterchef - Season 4 Episode 12 : Semifinal day two Celebrity Masterchef - Season 4 Episode 12 : Semifinal day two 6.1/10 by 13 users 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. Details Casts Posters Images Title Celebrity Masterchef - Season 4 Episode 12 : Semifinal day two Alternative Titles First Air Date 2006-09-11 Last Air Date 2025-12-19 Number of Episodes 333 Number of Seasons 20 Genres Reality, Networks BBC One, Casts John Torode, Grace Dent Plot Keywords , Self - Host / Judge John Torode Self - Host / Judge Grace Dent Episodes List Celebrity Masterchef Season 4 :Episode 1 Knockout rounds 1 & 2 Knockout rounds 1 & 2 2009-06-10 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 2 Knockout rounds 3 & 4 Knockout rounds 3 & 4 2009-06-11 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 3 Quarterfinal one Quarterfinal one 2009-06-12 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 4 Knockout rounds 5 & 6 Knockout rounds 5 & 6 2009-06-17 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 5 Knockout rounds 7 & 8 Knockout rounds 7 & 8 2009-06-18 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 6 Quarterfinal two Quarterfinal two 2009-06-19 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 7 Knockout rounds 9 & 10 Knockout rounds 9 & 10 2009-06-24 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 8 Knockout rounds 11 & 12 Knockout rounds 11 & 12 2009-06-25 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 9 Quarterfinal three Quarterfinal three 2009-06-26 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 10 Quarterfinal four Quarterfinal four 2009-07-01 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 11 Semifinal day one Semifinal day one 2009-07-02 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 12 Semifinal day two Semifinal day two 2009-07-03 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 13 Final day one Final day one 2009-07-08 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 14 Final day two Final day two 2009-07-09 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 15 Series 4, Episode 15 Series 4, Episode 15 2009-07-10 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef.