Sailor Frankie Martin is offered a thousand pounds by a millionaire in disguise if he can earn a hundred pounds in a week by honest means. Frankie tries his hand as a boxer, a bouncer and a commissionaire, and finally finds success as a singer. He also falls for the charms of night club chanteuse Julie, and this leads to further success when he wins a recording contract.
| Actor | Role |
|---|---|
 Frankie VaughanFrankie Martin | Frankie Martin |
 Anne HeywoodJulie | Julie |
 Tony BrittonTony Carlisle | Tony Carlisle |
 Anthony NewleyJohnnie | Johnnie |
 Michael MedwinSid | Sid |
 George RoseCharlie | Charlie |
| PPeter SinclairBud | Bud |
 Harold KasketOscar | Oscar |
 Harry FowlerRazor | Razor |
 Vanda HudsonCha Cha (as Vanda) | Cha Cha (as Vanda) |
| LLeslie MitchellHimself | Himself |
| KKent WaltonHimself | Himself |
| LLogan ‘Kid’ BasseyHimself | Himself |
 Marianne StoneCountergirl | Countergirl |
| CColin CroftRudy | Rudy |
 Lloyd LamblePolice Inspector | Police Inspector |
 Bruce SetonRiver Police Inspector | River Police Inspector |
| GGerald CaseTheatre Manager | Theatre Manager |
 Richard VernonManager | Manager |
| VVictor PlattBob | Bob |
 Cyril ChamberlainBoxing Match MC | Boxing Match MC |
| RRupert EvansBoxing Opponent | Boxing Opponent |
| CCharles WadeJockey | Jockey |
| PPeter BennettPeter | Peter |
| VVilma Ann LeslieMimi | Mimi |
| HHarry BrunningPop | Pop |
 John SalewAgent | Agent |
| CChristine PollonNurse | Nurse |
 Joan BenhamGrace | Grace |
 Shay GormanMan | Man |