
On the sunless moon Io, Marshall William T. O’Niel goes toe-to-toe with the corrupt manager of a mining colony and his gang of roughnecks while investigating a rash of worker suicides.
Cast

Sean Connery
Marshal William T. O'Niel

Peter Boyle
Mark Sheppard

Frances Sternhagen
Dr. Lazarus

James B. Sikking
Sgt. Montone

Kika Markham
Carol O'Niel

Clarke Peters
Sgt. Ballard

Steven Berkoff
Sagan

John Ratzenberger
Tarlow

Nicholas Barnes
Paul O'Niel

Manning Redwood
Lowell
Marc Boyle
Nicholas Spota

Pat Starr
Flo Spector
Hal Galili
Officer Nelson

Angus MacInnes
Hughes

Stuart Milligan
Walters

Eugene Lipinski
Cane

Norman Chancer
Officer Slater
Richard Hammar
Russel Yario
Isabelle Lucas
Nurse
James Berwick
Worker at Table

Sharon Duce
Hooker
Ron Travis
Officer Fanning
Bill Bailey
Officer Hill

Angelique Rockas
Maintenance Worker

P.H. Moriarty
Hitman #1

Gary Olsen
Worker #1
Chris Williams
Caldwell

Rayner Bourton
Male Prostitute - Leisure Club Sequence

Anni Domingo
Morton
Julia Depyer
Dancer - Leisure Club Sequence
Nina Francoise
Dancer - Leisure Club Sequence
Norri Morgan
Dancer - Leisure Club Sequence

Jude Alderson
Female Prostitute - Leisure Club Sequence

John Cannon
Barman (uncredited)
Brendan Hughes
Dancer - Leisure Club Sequence
Crew

Peter Hyams
Director, Screenplay

Stuart Baird
Editor

Stephen Goldblatt
Director of Photography
Richard A. Roth
Producer
Philip Harrison
Production Design
Freddie Cooper
Camera Operator
Bob Kindred
Camera Operator
Mary Selway
Casting
Tiny Nicholls
Costume Supervisor
John Mollo
Costume Design
Colin Jamison
Hairdresser

Peter Robb-King
Makeup Artist
Gordon Davidson
Supervising Sound Editor
Neil Burrow
Sound Editor
David Horton Sr.
Sound Editor
Richard Oswald
Sound Editor
Chester Slomka
Sound Editor
Scott Burrow
Assistant Sound Editor
Jeffrey Landgren
Assistant Sound Editor
Robin Gregory
Sound Mixer
Clyde McKinney
Dolby Consultant
Terry Sharratt
Boom Operator
Jay Engel
ADR Editor
John Stears
Special Effects

Jerry Goldsmith
Original Music Composer
George Korngold
Music Editor
Leonard A. Engel
Music Editor
Fred Harding
Production Accountant
Stuart Rose
Set Decoration
Albert Blackshaw
Construction Manager
George Whitear
Still Photographer

Anthony Van Laast
Choreographer
Danny Skundric
Property Master
June Randall
Continuity
John May
Gaffer
Denis Johnson
Production Manager
Peter Donen
Title Designer
Lynda Levy
Unit Publicist
Malcolm Middleton
Art Direction
Russ Woolnough
First Assistant Editor



















