Domeoids are vaguely humanoid robots, just under one meter tall, who serve as the soldiers for Dr. Dome, who is able to control them with his mind. They are armed mainly with axes and maces. Their unique features are their glass or crystal domes, which are reshaped in the skull of their creator. They have two eye openings that are below the glass dome.
- A poster of Dr. Dome and his Domeoids can be seen in the alternate ending of the 1990 film.