The favourite for the big race is nobbled and suspicion falls on the owner. His secret admirer proves it wasn't him.
| Actor | Role |
|---|---|
 Greta GyntWenda Panniford | Wenda Panniford |
 John McCallumCapt. Garry Anson | Capt. Garry Anson |
 Raymond LovellLord Willie Panniford | Lord Willie Panniford |
 Sonia HolmLady Mollie Panniford | Lady Mollie Panniford |
 Leslie DwyerSam Hillcott | Sam Hillcott |
 Charles VictorJohn Dory | John Dory |
 Felix AylmerLord Forlingham | Lord Forlingham |
| SSydney KingTony | Tony |
 Noel HowlettLawyer | Lawyer |
 Barry JonesSir John Garth | Sir John Garth |
| CClaude BaileyLord Inspond | Lord Inspond |
 Desmond RobertsRainby | Rainby |
 Diana DorsHawkins | Hawkins |
 Cyril ChamberlainCustoms Official | Customs Official |
 O.B. ClarenceOld Gentleman at Epsom | Old Gentleman at Epsom |
| MM.E. Clifton JamesCar Driver at Petrol Station (uncredited) | Car Driver at Petrol Station (uncredited) |
 Constance SmithAirport Attendant (uncredited) | Airport Attendant (uncredited) |