
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.

as Marshal William T. O'Niel

as Mark Sheppard

as Dr. Lazarus

as Sgt. Montone

as Carol O'Niel

as Sgt. Ballard

as Sagan

as Tarlow

as Paul O'Niel

as Lowell

as Nicholas Spota

as Flo Spector

as Officer Nelson

as Hughes

as Walters

as Cane

as Officer Slater

as Russel Yario

as Nurse

as Worker at Table

as Hooker

as Officer Fanning

as Officer Hill

as Maintenance Worker

as Hitman #1

as Worker #1

as Caldwell

as Male Prostitute - Leisure Club Sequence

as Morton

as Dancer - Leisure Club Sequence

as Dancer - Leisure Club Sequence

as Dancer - Leisure Club Sequence

as Female Prostitute - Leisure Club Sequence

as Barman (uncredited)

as Dancer - Leisure Club Sequence