| Cast list | | Charles Bronson | as | Scott Wardman | | Orson Bean | as | Hal | | Honor Blackman | as | Mummy | | Michael Craig | as | Daddy | | Paul Ford | as | Mr. Wardman, Scott's father | | Jack Hawkins | as | Judge Millington-Draper | | Trevor Howard | as | Lola's grandfather | | Lionel Jeffries | as | Solicitor | | Kay Medford | as | Mrs. Wardman, Scott's mother | | Robert Morley | as | Judge Roxborough | | Susan George | as | Lola/'Twinky' (Sybil) | | Peggy Aitchison | as | Mrs. Finchley | | Tony Arpino | as | New York Judge | | Eric Barker | as | Scottish Clerk | | Erik Chitty | as | Lawyer's Elderly Client |
| | Crew list: | | Richard Donner (Director) | | Norman Thaddeus Vane (Writer) |
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