Terry Shields), Hugh Fraser (as IIF chief executive Robert Bennett), Zoë Wanamaker (as intelligence agent Clementine), Allan Cuthbertson (as Chilwell of the Investigation Committee) and Blake's 7 cast members David Jackson (as Colonel Lawson) and Brian Croucher (as Northmoor security chief Connors). Playing themselves were television reporters Sue Cook and Kenneth Kendall, weatherman Bill Giles and Labour MP Michael Meacher. Long-standing BBC visual effects designer Mat Irvine, who contributed visual effects to the series, received a brief cameo as a police diver in "Breakthrough". Crew Writer Troy Kennedy Martin was the creator of the long-running BBC police drama Z-Cars (1962–1978). He also wrote the screenplay for the films The Italian Job (1969) and Kelly's Heroes (1970) and scripts for television series such as Colditz (1972–1974), The Sweeney (1975–1978) (which was created by his brother Ian Kennedy Martin) and Reilly, Ace of Spies (1983). Following Edge of Darkness, he wrote the screenplays for the films Red Heat (with Walter Hill) (1988) and Bravo Two Zero (1999). He died in September 2009. Director Martin Campbell had developed a reputation for handling action thrillers with credits including The Professionals (1977–1983), Minder (1979–1994) and Shoestring (1979–1980). A few years after Edge of Darkness, Campbell moved into feature films, directing the James Bond films GoldenEye (1995) and Casino Royale (2006) as well as The Mask of Zorro (1998), Vertical Limit (2000) and The Legend of Zorro (2005). Producer Michael Wearing had worked on Play for Today for which he had produced Alan Bleasdale's The Black Stuff (1978) and which he and Bleasdale subsequently spun off into the highly acclaimed Boys from the Blackstuff (1982). He also produced the conspiracy thriller Bird of Prey (1982). Following Edge of Darkness he continued to be one of British television's most high profile and successful producers, appointed Head of Serials at the BBC between 1989 and 1998 where he was responsible for such programmes as Pride and Prejudice (1995), Our Friends in the North (1996) and Dennis Potter's final two plays Karaoke (1996) and Cold Lazarus (1996). Walt Patterson, who acted as series adviser, was a leading commentator on nuclear affairs, best known for his book Nuclear Power (Penguin, 1976–1986). Following Edge of Darkness, he acted as specialist adviser to the British House of Commons Select committee on Environment for their 1986 study, Radioactive Waste. He continues to contribute to the policy debate about energy and environmental issues. Advice