Gregg Allan Wallace (born 17 October 1964) is an English writer, media personality and former greengrocer, costermonger and farmer. He is probably best known for co-presenting MasterChef, Celebrity MasterChef and MasterChef: The Professionals on BBC Two and BBC One along with John Torode, where he is referred to as an "ingredients expert". He has referred to himself jokingly as just: "the fat, bald bloke on Masterchef who likes pudding".
Wallace was born in Peckham. At aged 14, his parents divorced, and he discovered that he mother's long term lover was in actual fact his father.
Wallace began his career selling vegetables at a stand in Covent Garden. He started George Allan’s Greengrocers in 1989, a company that built up to an eventual turnover of £7.5 million. He presently owns a restaurant based in Bermondsey.
Due to his business success he was invited to co-present Veg Talk on BBC Radio 4 with Charlie Hicks for seven years. He was the original presenter of Saturday Kitchen from 2002 until he was replaced by Antony Worrall Thompson in 2003. Wallace also presented Veg Out for the Discovery Channel, and Follow That Tomato for The Food Channel, resulting in a Royal Television Society award for Best Lifestyle Programme in 2003. In 2007, he appeared in the BBC reality TV singing contest Just the Two of Us where he partnered Carol Decker; they were the first to be eliminated. In 2008 and 2009 he presented two editions of The Money Programme on the effect that the current financial crisis is having on the public's attitudes towards food. In 2010, he appeared as one of the historical experts in the BBC One historical recreation series Turn Back Time: The High Street alongside Tom Herbert and Juliet Gardiner. Wallace regularly writes for Good Food and Olive magazine.