Barbados Quest

Special investigator Duke Martin is in London to investigate the authenticity of a rare postage stamp called the Barbados Overplate. Someone is willing to commit murder to get his or her hands on the stamp, which puts a crimp in Duke's efforts to romance every beautiful woman he meets.

• 
  Bernard Knowles

• 
  Tom Conway
  Tom Martin
• 
  Delphi Lawrence
  Jean Larson
• 
  Brian Worth
  Geoffrey Blake
• 
  Michael Balfour
  Barney Wilson
• 
  Marianne Stone
  Mrs Wilson
• 
  Campbell Cotts
  Robert Coburn
• 
  John Horsley
  Det. Insp. Taylor
• 
  Ronan O'Casey
  Stefan Gordoni
• 
  Launce Maraschal
  J.D. Everleigh
• 
  Colin Tapley
  Lord Valchrist
• 
  Alan Gifford
  Henry Warburg
• 
  Grace Arnold
  Lady Hawksley
• 
  John Colicos
  Mustachioed Henchman (as John Collicos)
• 
  Mayura
  Yasmina
• 
  John Watson
  Detective Sgt. Grant
• 
  Reggie Morris
  Cleanshaven Henchman (as Reg Morris)
• 
  Derrick Whittingham
  Print Shop Manager
• 
  Charles Hammond