• 
• Walter Brooke
• Sub-Lt. Granger, R.N.
  

• 
• Bill Daniels
• Sub-Lt. Granger, R.N.
  

• 
• Bruce Hall
• Able Seaman McIntosh
  

• 
• Leslie Nielsen
• Petty Officer Herbert
  

• 
• J. Pat O'Malley
• Able Seaman Badger
  

• 
• John Randolph
• Able Seaman Turner
  

• 
• Mark Rydell
• Able Seaman Sims
  

• 
• Guy Spaull
• Lt. Comdr. Redmond, D.S.O., D.S.C., R.N.
  

• 
• Rod Steiger
• Telegraphist
  

• 
• Hugh Hastings
• Writer
  Staging
  

• 
• Charles Bowden
• Staging
  Producer
  

• 
• Melvin Bourne
• Scenic Design
  Lighting Design
  

• 
• Mildred Trebor
• Costume Design
  

• 
• Philip Langner
• Producer
  

• 
• Peter Cookson
• Producer In Association