Kenny Ball and His Jazzmen, Peter Noble, Peter Haigh and Nancy Spain all receive 'Guest Stars' credits.
Ed Devereaux who plays David Hemmings' father was only 16 years older than him. Both actors have passed away in December 2003.
Five years after this movie, both David Hemmings and The Outlaws guitarist Ritchie Blackmore, would appear on the same episode of Hugh Hefner's Playboy After Dark series on American TV. Blackmore as part of Deep Purple and Hemmings was interviewed with his new bride Gayle Hunnicutt. The episode aired on October 23rd 1968.
Jennifer Moss was familiar to television viewers for playing Lucille Hewitt in Coronation Street (1960). She was able to act in the film owing to a lengthy Equity Actors' Strike from November 1961 to April 1962, which prevented her from appearing in the ITV soap until the dispute ended.