Farrah Fawcett-Majors

Alex

Kirk Douglas

Major Adam

Harvey Keitel

Benson

Ed Bishop

Harding (uncredited)

Roy Dotrice

Benson (uncredited) (voice)

Jill Goldston

Woman on World Spaceways Ship (uncredited)

Douglas Lambert

Captain James (uncredited)

Christopher Muncke

2nd Crewman (uncredited)