Episode Detail: Inspector Morse: The Infernal Serpent - Mystery!
In the conclusion of "The Infernal Serpent," Morse (John Thaw) tries to get some information on McGovern, and Imogen (Irene Richard) tells her mother to get rid of Sylvie (Cheryl Campbell). McGovern: Pearce Quigley. Blanche: Barbara Leigh-Hunt. Lewis: Kevin Whately. Ron: George Costigan.