• 
  Jack Arnold

  regizor

• 
  David Duncan

  scenarist

• 
  Arthur Franz

  Prof. Donald Blake
• 
  Joanna Moore

  Madeline Howard
• 
  Judson Pratt

  Lieutenant Mike Stevens
• 
  Nancy Walters

  Sylvia Lockwood
• 
  Troy Donahue

  Jimmy Flanders
• 
  Phil Harvey

  Sergeant Powell

• 
  Helen Westcott

  Asistenta Molly Riordan
• 
  Alexander Lockwood

  Profesor Gilbert Howard
• 
  Whit Bissell

  Dr. Oliver Cole
• 
  Ross Elliott

  Sergeant Eddie Daniels
• 
  Anne Anderson

  Student
• 
  Richard H. Cutting

  Tom Edwards, Forest Ranger
• 
  Joanna Moore

  Madeline Howard

• 
  Nancy Walters

  Sylvia Lockwood

• 
  Joseph Gershenson

  producător
• 
  Russell Metty

  imagine
• 
  Ted J. Kent

  montaj