Adam Roberts is commonly described as one of the UK's most important writers of SF. He is the author of numerous novels and literary parodies. He is Professor of 19th Century Literature at Royal Holloway, London University and has written a number of critical works on both SF and 19th Century poetry. He is a contributor to the SF ENCYCLOPEDIA.
Mark Perry of BBC's Dead Ringers fame (as the voice of Martin Jarvis and Graham Norton) is a political and sports impressionist in other BBC radio series and in The Archers. On TV he has appeared in Mr Charity and in various stage productions around Britain.