Clifford was born in Barking, Essex, and spent most of his early years divided between the family homes in Ilford and Clacton-on-Sea. He started acting in plays at Uphall Primary School for Hit Entertainment's Thomas and Friends and two years as Henry VIII at the renowned Medieval Banquet in London. In his spare time Clifford is a keen historian specializing in London history and the events and people surrounding the Titanic disaster. He is a supporter of the wonderful Leyton Orient Football Club and also takes great delight hacking his way around a golf course!
