• 
  Preston Foster

  Dr. Erik von Steiner
• 
  Philip Carey

  Dr. Steve Connors
• 
  Merry Anders

  Carol White
• 
  John Hoyt

  Dr. Varno
• 
  Berry Kroeger

  Preston
• 
  Delores Wells

  Reena (Danny's girl)
• 
  Steve Franken

  Danny McKee, the Electrician
• 
  Forrest J Ackerman

  Square-frame technician

• 
  Mollie Glessing

  Android
• 
  Gloria Leslie

  Councilwoman
• 
  J. Edward McKinley

  Raymond
• 
  Dennis Patrick

  Councilman Willard
• 
  Margaret Seldeen

  Miss Hollister
• 
  Peter Strudwick

  The Mutant
• 
  Joan Woodbury

  Gadra

• 
  László Kovács

  camera and electrical departme
• 
  Vilmos Zsigmond

  imagine
• 
  Richard LaSalle

  departament sunet
• 
  Don Levy (II)

  producător
• 
  Samuel Z. Arkoff

  producător