THX 1138

People in the future live in a totalitarian society. A technician named THX 1138 lives a mundane life between work and taking a controlled consumption of drugs that the government uses to make puppets out of people. As THX is without drugs for the first time he has feelings for a woman and they start a secret relationship.

• 
  George Lucas
• 
  Lillian O. MacNeill

• 
  Robert Duvall
  THX
• 
  Donald Pleasence
  SEN
• 
  Don Pedro Colley
  SRT
• 
  Maggie McOmie
  LUH
• 
  Ian Wolfe
  PTO
• 
  Marshall Efron
  TWA
• 
  Sid Haig
  NCH
• 
  John Pearce
  DWY
• 
  Irene Cagen
  IMM
• 
  Gary Alan Marsh
  CAM
• 
  John Seaton
  OUE
• 
  Eugene I. Stillman
  JOT
• 
  Jack Walsh
  TRG
• 
  Mark Lawhead
  Shell Dweller
• 
  Robert Feero
  Chrome Robot
• 
  Johnny Weissmuller Jr.
  Chrome Robot
• 
  Claudette Bessing
  ELC
• 
  Susan Stroh
  Control Officer
• 
  James Wheaton
  OMM (voice)
• 
  Henry Jacobs
  Mark 8 Student