John Simm reveals 'Doctor Who' inspiration

John Simm has revealed that he felt duty bound to accept a role on Doctor Who because his young son is such a major fan.The Life On Mars actor, who will play politician Mr Saxon in the upcoming season, told The Times how his five-year-old's devotion to the show led to him becoming involved: “He’s Doctor Who mad. He’s got the lunch-box, the dolls, the screwdriver. As the dad of a small boy, you kind of have a moral duty to be a baddie on Doctor Who if you can, don’t you?” Simm also told the newspaper of the lengths the family drama's Executive Producers went to in order to convince him of taking the part: "Julia Gardner and Russell T. Davies were getting on midnight trains up to Manchester, to the set of Life on Mars, to ask me to do it.”Doctor Who returns to BBC One on Saturday at 7pm.