First broadcast 4th/11th January 1991.<br /><br />Commander Adam Dalgliesh's seaside holiday turns perilous when he finds himself investigating a serial killer dubbed "The Whistler" amid suspicious events at a nearby nuclear power plant.<br /><br />Roy Marsden - Commander Adam Dalgliesh<br />Susannah York - Meg Dennison<br />Gemma Jones - Alice Mair<br />James Faulkner - Dr. Alex Mair<br />Tony Haygarth - Chief Inspector Terry Rickards<br />Tom Georgeson - Ryan Blaney<br />Tom Chadbon - Miles Lessingham<br />Suzan Crowley - Hilary Robarts<br />Harry Burton - Dr. Toby Gledhill<br />Nicola Cowper - Amy Camm<br />Robert Hines - Neil Pascoe<br />Helena Michell - Caroline Amphlett<br />Jamie Newall - Jonathan Reeves<br />Lisa Ellis - Theresa Blaney (as Lisa Taylor)<br />Paul Hargreaves - Neville Potter<br />Ingrid Statman - Christine Baldwin<br />Robert Cotton - Norman Baldwin<br />John Judd - George Jago<br />Mitzi Rogers - Doris Jago<br />Sophie Ashton - Valerie Mitchell<br />Simon Cook - Patrick Mitchell<br />Cherith Mellor - Grace Mitchell<br />Ralph Michael - Reverend Copley<br />Aimée Delamain - Mrs. Copley<br />Margery Withers - Passenger in Car<br />Richard Hastings - Timmy Camm<br />Nathan Deakin - Anthony Blaney<br />Amanda Smith - Maeve Blaney<br />Georgina Smith - Marie Blaney<br />Robert Alexander - Colin Lomas<br />Phillip Reader - Harry (as Phillip Reder)<br />Paul Dalton - Peter<br />Stephanie Kapsza - Helen<br />Nick Haverson - Wayne (as Nicholas Haverson)<br />Emma Bernard - Barmaid<br />Anne Leroux - Journalist<br />Janet Holgate - Church Organist<br />Malcolm Rennie - Mr. Mair<br />Guy Faulkner - Young Alex Mair<br />Kate Beckinsale - Young Alice Mair (voice)<br />Al Ashton - Det Sgt Stuart 'Jumbo' Oliphant<br />Benedict Martin - Det Con Price<br />Philip Dunbar - Dr. Maitland-Brown