Sleuth (1972 film) as a full partner. The likeness of actress Joanne Woodward was used for the painting of Marguerite Wyke. The production team intended to reveal as little about the movie as possible so as to make the conclusion a complete surprise to the audience. For this reason there is a false cast list at the beginning of the film which lists fictional people playing roles that do not exist. They are Alec Cawthorne as Inspector Doppler, John Matthews as Detective Sergeant Tarrant, Eve Channing (named after the characters Eve Harrington and Margo Channing from Mankiewicz's 1950 film "All About Eve") as
Emlyn Williams Green" (1938), partly based on his own childhood in Wales. He starred as a Welsh schoolboy in the play's London premiere. The play came to Broadway in 1940 with Ethel Barrymore as the schoolteacher Miss Moffat. A 1950 Broadway revival starred Eva La Gallienne. The play was turned into a film starring Bette Davis, and again into a made-for-television film starring Katharine Hepburn, under the direction of Williams's close friend George Cukor. An attempt to turn the play into a musical in the 1970s, with Davis again in the role of the schoolteacher with lyrics by Williams, failed. So did