Andy Wilson Director Julia McKenzie Miss Marple Actor Elliot Cowan Wally Hudd Actor Joan Collins Ruth Van Rydock Actor Penelope Wilton Carrie Louise Serrocold Actor Brian Cox Lewis Serrocold Actor Jordan Long Whitstable Ernest Actor Sarah Smart Mildred Actor Maxine Peake Jolly Bellever Actor Alexei Sayle Dr. Maverick Actor Tom Payne Edgar Lawson Actor Paul Rutman Screenwriter