Great Guidance

The Great Guidance is the secondary, later true main antagonist of the 1953 film Robot Monster. He is the leader of Ro-man's race and he gave to Ro-Man the mission to exterminate humanity. He appears in a few scenes in the movie, constantly ordering Ro-Man to kill all humans. He seems to be even more cruel and merciless with humans than Ro-Man and he doesn't tolerate that his henchmen could act as one of them.

History
When Ro-Man refuses to kill Alice, he kills him with his ray by punishment and, in his wrath, starts to destroy the planet, release dinosaurs and create massive earthquakes. In the final scene, when all the events of the film appears to have been Johnny's dream, The Great Guidance is shown heading out of his cave just before the film's ending.