Castor

Castor seems to be mainly monotonous, keeping calm when asked questions by Earth and Lunar. he doesn't usually show emotion in his voice or how he acts. however, he does seem to be willing to care, as shown by the fact he decided to teach Lunar how to use his powers.The half of the Gemini constellation on his shirt is associated with one of Gemini's brightest stars, Castor. Castor seems to have a good relationship with Lunar, being the only other person besides Pollux that castor usually doesn't get an attitude with, and even stuck up for Lunar when the astral bodies weren't sure if him losing control was self defence, or if Lunar was a threat. Castor seems to be liking Lunar more and more, maybe even considering him to be like a little brother, or cousin to him, as he has gotten noticeably nicer and less strict with Lunar, as when Earth and Lunar asked for a rest day for Lunar, Castor didn't even argue or try to push Lunar, and even saying that he was worried for Lunar's safety, and even calling him a good as he calls them "Earthling". Castor is definitely top 7 strongest astral bodies, as he was able to intimidate someone like Stitchwrath, who is practically impossible to intimidate, due to their egotistical personality, and immense abilities, both intellect and raw power. As Castor has said himself along with the other Astral Bodies are weak against antimatter and can also be killed by fellow Astral Bodies. Castor has an interest in books, it is unknown what type Castor is pure light, so he doesn't show up on camera. Castor, although loving his sister, pointed out she's very similar to Lunar, and he calls this a "nightmare" Despite being Pollux's sister, and Lunar's friend.