Patrick Lyster

as Dr. Sapirstein

as Mr. Winthrop

as Glen Woods

as Mr. McCormack (dad)

as Dr. Joost Opperman

as Control Operator 2 (uncredited)

as Xavier

as Ira

as Martin Chandler

as Warden Medford Parks

as Mr. Pienaar

as Major Pieter Jordaan

as Charles Garry

as Hooks

as Sven