Patrick McGoohan
as Doctor Paul Ruth
Michael Ironside
as Darryl Revok
Stephen Lack
as Cameron Vale
Jennifer O'Neill
as Kim Obrist
Lawrence Dane
as Braedon Keller
Adam Ludwig
as Arno Crostic
Victor Desy
as Dr. Gatineau
Mavor Moore
as Trevellyan
Robert Silverman
as Benjamin Pierce