Two More Sphere Characters

Name: Headless Sphere
Gender: Male
Personality: HS is an being who is thought to be evil. He is always avoided by people who don't know him personally. Sure, he does have no head, no face, and fire from inside him, but he's just someone who is wants to have fun. He does carry a sword that has fire coming off of it for protection. And, despite having no face, he can see and talk just fine.

Name: ChiRo
Gender: Male
Personality: ChiRo is always helpful and loves his friends. He is always ready to do chores or jobs he is needed for. Because he has no mouth, he can't talk. He hates rain and water.

Can you guess who they are based on?