Geoffrey Cecil Burridge 4 December 1948 30 September 1987 was an English actor noted for his performances in theatre and television On television he appeared as Mark Proctor in early episodes of Emmerdale Farm and is also remembered for his guest appearance in Blakes 7 as Dorian in the episode Rescue In John Landiss 1981 film An American Werewolf in London he appeared as the undead murdered man with his fiancée in the sex cinema scene He also appeared in the 1978 BBC TV drama by Derek Lister The Ice House as one of the main characters Clovis and in the same year made a guest appearance in the series 1990 as American chess champion Cyrus Asher in the episode Youll Never Walk Alone