Trailer
 | Ben Blue as Smith / 'Simplicitas' |
| Humberston Wright as Sir George Paddock |
 | Gibb McLaughlin as Peter Doody |
| Cyril McLaglen as The Crook |
 | Jeanne De Casalis as Mrs Smith |
 | Vesta Sylva as Eileen Smith |
| Doris Bransgrove as Sombra |
| Nancy Rigg as Chrysea |
 | John Longden as Jack Meadows |
| Ivor Vintor |
| Teddy Brown |
| Lola and Luis |
| Tracey and Haye |
| Balliol and Merton |
| The Donovan Sisters |
| Directing | |
| Victor Saville | Director |
Production | |
| Maurice Elvey | Producer |
| Victor Saville | Producer |
| Gareth Gundrey | Producer |
Writing | |
| Victor Saville | Scenario Writer |
| Mark Ambient | Theatre Play |
| Alexander M. Thompson | Theatre Play |
Camera | |
| Basil Emmott | Director of Photography |
| Percy Strong | Director of Photography |
Art | |
| Andrew Mazzei | Art Direction |
Costume & Make-Up | |
| Dolly Tree | Costume Designer |
Sound | |
| Louis Levy | Music Arranger |
