The Yudoo are an alien race was native to the planet Yudoo. They are tall, lean humanoids covered with short, brown fur. Their faces were elongated, and were dominated by broad, flat noses and wide mouths. Although the Yudoo ears were much smaller. The hair on the head of a Yudoo was considered quite beautiful, being full-bodied and deeply colored. One of the unique things about the Yudoo was that each individual was a collection of separate minds, any one of which can take control of the individual's mind and act.