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
Carol Channing Broadway for "Let's Face It!", in which she was an understudy for Eve Arden, who was 13 years older than Channing. Decades later, Arden would play Dolly in a road company after Channing finally relinquished her signature role. Five years later, Channing had a featured role in "Lend an Ear" (1948), for which she received her Theatre World Award and launched her as a star performer. Channing credited illustrator Al Hirschfeld for helping make her a star when he put her image in his widely published illustrations. She said that his drawing of her as a flapper was what helped