Eighty-year-old Edward Le Veque, who appeared as the prostitute's customer, was the last surviving member of the original Keystone Kops.
Director Michael Winner intended to include Hedy Lamarr among the huge list of guests for the movie, but she couldn't be traced.
Although Joan Crawford is one of the few "Old Hollywood" stars who doesn't make a guest cameo appearance in the film proper, she can be clearly spotted as a chorus girl sitting at a make-up table during an old film clip used under the opening credits in the section headed by the name of William Demarest.
Final theatrical feature film of actor William Demarest who played a studio gatekeeper. His final work in a filmed production was the tele-movie 'The Millionaire' (1978) (TV).
Bob Harks: Uncredited, as a theater patron. He also appeared in the same year's Mel Brooks film 'Silent Movie' (1976) where he played a hospital visitor also appearing uncredited. In 1976, this bit player / day player appeared in over 50 film and television productions.
George Holmes: Uncredited, as an usher. He also appeared uncredited as an audience member in the same year's 'Silent Movie' (1976) directed by Mel Brooks and in the same year's other major dog movie, 'The Shaggy D.A.' (1976), where he also appeared uncredited as a pedestrian.
Jack Berle: Uncredited, as a party guest. This was one of the ten feature films he appeared in that year. He also appeared uncredited as an audience member in 'Silent Movie' (1976) directed by Mel Brooks and as an uncredited official in 'The Shaggy D.A.' (1976). He also appeared in some television productions that year.