• 
  Andrew Marton

  regizor

• 
  Alexander Knox

  Sir Charles Eggerston
• 
  Dana Andrews

  Dr. Stephen Sorenson
• 
  Kieron Moore

  Dr. Ted Rampion
• 
  Janette Scott

  Dr. Maggie Sorenson
• 
  Ben Tatar

  Indian ambassador
• 
  Alfred Brown

  Dr. Bill Evans
• 
  Peter Damon

  John Masefield

• 
  Jim Gillen

  Rand
• 
  John Karlsen

  Dr. Reynolds
• 
  Gary Lasdun

  Markov
• 
  Todd Martin

  Simpson
• 
  Sydna Scott

  Angela
• 
  Mike Steen

  Steele

• 
  Johnny Douglas (I)

  departament sunet

• 
  Haroun Tazieff

  miscellaneous crew
• 
  Johnny Douglas (I)

  music department
• 
  Eugène Lourié

  design de producţie
• 
  David Hildyard

  sound department
• 
  Eugène Lourié

  special effects
• 
  Alex Weldon

  special effects
• 
  Julian Zimet

  scriitor