The Giant Behemoth

Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur which threatens London.

• 
  Eugène Lourié
• 
  Kim Mills
• 
  Jennifer Herrinshaw
• 
  Douglas Hickox

• 
  Gene Evans
  Steve Karnes
• 
  André Morell
  Prof. James Bickford
• 
  Leigh Madison
  Jean Trevethan
• 
  John Turner
  John
• 
  Alastair Hunter
  Dr. C. A. Morris, the village doctor
• 
  Lloyd Lamble
  Senior Admiral, at the Admiralty
• 
  Jack MacGowran
  Dr. Sampson, the paleontologist
• 
  Maurice Kaufmann
  Mini Submarine Officer
• 
  Henri Vidon
  Tom Trevethan
• 
  Patrick Jordan
  Photo Lab Aide
• 
  Howard Lang
  Naval Commader, at the "Valkyrie" wreck (uncredited)
• 
  Leonard Sachs
  Dialogue Scientist at Conference (bit)
• 
  Ernest Blyth
  Scientist at Conference (uncredited)
• 
  Neal Arden
  TV Newscaster (uncredited)
• 
  Paul Beradi
  Man Listening to Car Radio (uncredited)
• 
  Max Faulkner
  PLA Radio Operator (uncredited)
• 
  Neil Hallett
  Dr. Sampson's Helicopter Pilot (uncredited)
• 
  André Maranne
  French Radio Officer (uncredited)
• 
  Derren Nesbitt
  The Radar Operator, at the radar room (uncredited)
• 
  Guy Standeven
  Naval Officer in Situation Room (uncredited)