• 
  Larry Peerce

  regizor

• 
  Richard Murphy

  scenarist

• 
  Tim Matheson

  Joe Hardy
• 
  Richard Gates

  Frank Hardy
• 
  Richard Anderson

  Fenton Hardy
• 
  Portia Nelson

  Aunt Gertrude Hardy
• 
  Brian Fong

  Jim Foy
• 
  Edward Andrews

  Dr. Montrose

• 
  James Shigeta

  George Ti Ming
• 
  Emile Meyer

  Burke
• 
  Stephen Jahn

  Chet Morton
• 
  Malcolm Atterbury

  Clams Daggett
• 
  Teri Garr

  Susie
• 
  Henry Jordan

  Al doilea om
• 
  Ricky Kelman

  Biff

• 
  Jack Richardson

  Richardson
• 
  Teru Shimada

  Mr. Pan
• 
  Jan-Michael Vincent

  Tony Prito
• 
  Howard Smith

  Cummings

• 
  Larry Peerce

  producător
• 
  Richard Murphy

  producător executiv
• 
  Edward Stratemeyer

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