Ian Marter is best remembered by Doctor Who fans as the actor who played the Fourth Doctor's companion Harry Sullivan. In fact, his first role in Doctor Who came a couple of years earlier when he played the character of Andrews in 'Carnival of Monsters'. Marter worked with his friend Tom Baker on ideas for a possible Doctor Who film, and together they developed a script. Though the film was never made, Marter continued to write and novelised nine Doctor Who adventures for Target books. Ian Marter died in 1986.