Stand by for Action

U. S. Navy Lieutenant Gregg Masterman, of The Harvard and Boston Back Bay Mastermans, learned about the sea while winning silver cups sailing his yacht. He climbs swiftly in rank, and is now Junior Aide to Rear Admiral Stephen Thomas.

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  Robert Z. Leonard

• 
  Robert Taylor
  Lieut. Gregg Masterman
• 
  Charles Laughton
  Rear Admiral Stephen Thomas
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  Brian Donlevy
  Lieut. Cmdr. Martin Roberts
• 
  Walter Brennan
  Chief Yeoman Henry Johnson
• 
  Chill Wills
  Mate Jenks, Chef-Bootsmann
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  Marilyn Maxwell
  Audrey Carr
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  Henry O'Neill
  Cmdr. Stone M.C
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  Marta Linden
  Mary Collins
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  Douglass Dumbrille
  Capt. Ludlow
• 
  Richard Quine
  Ensign Lindsay
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  William Tannen
  Flag Lt. Dudley
• 
  Douglas Fowley
  Ensign Martin
• 
  Tim Ryan
  Lt. Tim Ryan
• 
  Dick Simmons
  Lt. (jg) Royce
• 
  Byron Foulger
  Pharmacist's Mate 'Doc' Miller
• 
  Hobart Cavanaugh
  Carpenter's Mate 'Chips'
• 
  Inez Cooper
  Susan Garrison
• 
  Ben Welden
  Chief Quartermaster Rankin
• 
  Harry Fleischmann
  Chief Signalman
• 
  Douglas Wood
  Sen. Masterman (uncredited)