X is the two's older brother, he's dark blue and bigger than his little brothers. He's kinda emo and only likes Uranus and Neptune, he absolutely despises Saturn and Jupiter

Uranus is the middle child, hes light blue and the only one with a ring, that's tilted sideways above his head. He has very very long hair, and likes X, Neptune, Saturn and Jupiter

Neptune is the youngest, he's bright blue, and he's only slightly smaller than Uranus. His hair is very messy, and Neptune is fun and oblivious. He doesn't know who Saturn and Jupiter are