Glenn Cosby is a British baker who appeared on The Great British Bake Off, series 4. At the time of recording he was a teacher. He attended the University of Edinburgh, and taught English in Teignmouth for seven years and was Head of Sixth Form. He has since left teaching, and appeared at various festivals and events and taken a One-Man Show to Edinburgh. Cosby's appearances have included the Good Food Show, the Cake and Bake Show, the Big Cake Show, the Exeter Festival of South West Food and Drink and the Devon County Fair. He is also an author having written a book entitled Tasty Travels.