• 
  Harold French

  regizor

• 
  Theodore Bikel

  Max
• 
  Michael Hordern

  Director of Customs
• 
  Nigel Patrick

  Insp. Michael Kenyon
• 
  Elizabeth Sellars

  Rita Compton
• 
  Eric Pohlmann

  Steven Lasovich
• 
  Martin Boddey

  Sub-Director Holt
• 
  Nicholas Phipps

  Royal Navy Imformation Officer

• 
  Tom Gill

  Montana hotel receptionist
• 
  Cyril Chamberlain

  Customs Officer
• 
  Ronald Adam

  Mr. Bennett - Customs Official.
• 
  Philip Stainton

  Police Sgt. - Seaburyness
• 
  Joyce Grenfell

  Lady Flavia Queensway
• 
  Campbell Singer

  Sgt, River Police.
• 
  Terence Morgan

  Roger Compton

• 
  Denis Shaw

  Ship's cook
• 
  John Horsley

  Customs Officer
• 
  Brian Wilde

  Smuggler at airfield
• 
  Arnold Diamond

  French Customs Officer

• 
  Robert Cartwright

  art department
• 
  Anthony Masters

  art department
• 
  Reginald H. Morris

  camera and electrical departme
• 
  C.M. Pennington-Richards

  imagine
• 
  Anne V. Coates

  montaj
• 
  Sydney Box

  producător
• 
  Earl St. John

  producător
• 
  C.C. Stevens

  sound department
• 
  Sydney Box

  scriitor