• 
  Leslie Ash

  Fred Smith
• 
  George A. Cooper

  Amos Fraser
• 
  Graham Crowden

  Admiral Cranshaw
• 
  Fraser Downie

  Engineer
• 
  Jill Gascoine

  Maggie Forbes
• 
  Phyllida Hewat

  Lady Cranshaw
• 
  Peter Jones

  Nigel Hawkins
• 
  Rosalyn Landor

  Pru Standfast

• 
  Hugh Lloyd

  Charlie Hawkins
• 
  Sally Mates

  Ward Sister
• 
  Julia McCarthy

  Slo Hawkins
• 
  Linda Regan

  Naval Computer Operator
• 
  Ken Sharrock

  Skipper
• 
  Peter Tilbury

  Malcolm Proby
• 
  Don Warrington

  Nigel Beaumont