Guest Stars Simon Hubbard as PC Taylor Don Gallagher as Dr. Bob Anderton Christopher Fairbank as Billy Mallam Nick Hendrix as Anthony Baugh James Norton as James Blackstone Ebony Buckle as Ellen Mallam Geraldine Somerville as Alethea Blackstone Roger Lloyd Pack as Hector Blackstone Alex Childs as Ms. Acklington Chris Brailsford as Asst. Chief Constable Gordon Fred Pearson as Caretaker Nicholas Lumley as Dr. Arnold Bev Fox as Woman