Marc Platt wrote the TV Doctor Who story Ghost Light first broadcast in 1989. He has written many Doctor Who audio plays for Big Finish Productions including Loups-Garoux, Spare Parts, Cradle of the Snake, The Silver Turk. Auld Mortality, A Storm of Angels and The Doctor's Tale. He also dramatised two stories by former Doctor Who producer Philip Hinchcliffe: The Ghosts of Gralstead and The Devil's Armada (both with Tom Baker). He has recently dramatised The Wonderful Wizard of Oz for audio. Blake's 7 audio plays include Flag and Flame, The Sea of Iron and Drones. He is a published author with several TV tie-in novels and short stories to his name.