THX 1138 (1971) | Full Cast

George Lucas

DIRECTOR

George Lucas

WRITER

Walter Murch

WRITER

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

Bill Love

Mark 8 Instructor

Doc Scortt

Monk

Gary Austin

Man in Yellow

Scott L. Menges

Child #1

Toby L. Stearns

Child #2

Paul K. Haje

Trial Prosecutor

Ralph Chesse

Trial Proctor

Dion M. Chesse

Trial Defender

Bruce Chesse

Trial Pontifex

Mello Alexandria

Hologram Dancer

Brandyn Barbara Artis

Hologram Dancer

Morris D. Erby

Hologram Newscaster

Willie C. Barnes

Hologram Comic

Richard Quinnell

Hologram Comic

Jean M. Durand

Hologram Listener

Scott Beach

Announcer(voice)

Neva Beach

Announcer(voice)

Terence McGovern

Announcer(voice)

Julie Payne

Announcer(voice)

James Cranna

Announcer(voice)

Ruth Silveira

Announcer(voice)

Bruce Mackey

Announcer(voice)

David Ogden Stiers

Announcer(voice)

Bart Patton

Announcer(voice)

Dennis Falt

Citizen(uncredited)

John Rigg

Computer Operator(uncredited)

Matthew Robbins

THX - End Scene(uncredited)