Duke was born 1952 in East Dulwich, South-East London and educated at Thomas Carlton Secondary School. He spent a number of years living abroad, working as a promoter of entertainment and the arts, and had his own 8 page newspaper pull-out covering all aspects of entertainment. He has also put together a variety of live shows, mainly ‘An Audience With’, including with such famous sportsmen as Frank Bruno, Jackie Charlton and many more.

He met his wife Lynne 40 years ago and they have two daughters Emma and Cassandra. He lives in Maidstone, Kent.