Update time, firstly from what i can tell Peter Ross Murray may have cancelled (Again) so that means he's no longer attending.
however Laurie Goode has been announced and he's been an extra in the following stories "The Mutants", "The Time Monster", "the Invasion of Time", "The Creature from the Pit", "Meglos", "State of Decay", "Warriors Gate", "Enlightenment", "Frontios", "The Mysterious planet" and "Battlefield", so you'll have a nice wide variety of covers to chose from, although on the subjective opinion most of those stories are a little Meh (Especially Frontios), he's only on the Saturday and costs £10 to aquire.