Castor is a star. He and his twin sister, Pollux, make up Gemini. The two are technically the same, but they consider each other siblings. Castor has the intelligence and such from the full form, Pollux has the emotions and such from it, so Castor’s rather emotionless. He has telepathy, and he can see things far away. He doesn’t know too much about humans, but he learns vaguely what he needs to know from Pollux