Three Twilight Zone veterans in one conspiracy

Hapsburg's three co-conspirators, representing coal, oil, and nuclear energy, are played by three longtime character actors who have all appeared on The Twilight Zone. Lloyd Bochner, of course, appeared in the classic episode "To Serve Man," and even parodies his performance in the bomb scare scene at the end of this movie, running around shouting, "It's a cookbook! It's a cookbook!" Peter Mark Richman, appeared in the Season 5 episode "The Fear," in which he played a state trooper helping a reclusive woman fend off an alien invasion. And Tim O'Connor played Col. Sloan, who unwittingly usurps James Whitmore's authority in the hour-long classic episode "On Thursday We Leave for Home."