Elenco

• 

  Horst Janson

  Captain Kronos

• 

  John Cater

  Professor Hieronymous Grost

• 

  Caroline Munro

  Carla

• 

  John Carson

  Dr. Marcus

• 

  Shane Briant

  Paul Durward

• 

  Lois Daine

  Sara Durward

• 

  Ian Hendry

  Kerro

• 

  Wanda Ventham

  Lady Durward

• 

  William Hobbs

  Hagen

• 

  Brian Tully

  George Sorell