Luke Johnson is Chairman of Channel 4 Television and Risk Capital Partners. For eight years he wrote a weekly column on business in The Sunday Telegraph. He was Chairman of Pizza Express during the 1990s and is currently an owner and Chairman of Giraffe restaurants and Patisserie Valerie. He has also owned companies in recruitment, dentistry and retailing. He graduated from Oxford and worked as a stockbroking analyst covering the media sector in the 1980s. He lives in London and is married with two children.