Apollo is the son of Avalon and his eldest child. He looks up to his father like a hero and mentor, and is often seen honing his battle skills with his sister Engel and Avalon. Avalon and Apollo also get into small skirmishes together while in their Bakugan Forms, but only do this for practice and fun, much to Rapture’s annoyance.
Apollo loves his mother very much, and try to do something very hilarious to lighten her up if she is ever in a bad mood. Though Rapture loves her son back, she gets annoyed when Apollo and Avalon had play fights while in their Bakugan forms.
Apollo enjoys watching over his sister Engel, and will immediately rush to her aid if she is caught in the middle of something. Apollo tends to be overprotective of Engel, much to her annoyance. However, she loves her older brother back and will sometimes talk to him to calm him down after an argument with someone.