Katie

Katie is a human the same age as James. They meet in middle school and james has a crush on her. James later marries Katie and they have three kids together. Their names are Bobby, Mitch, and Rachel. Bobby is born with james's superpowers however mitch does not genetically inherit these abilites. As a result this causes jealousy in mitch and he turns evil for a while to get revenge on bobby. Mitch eventually gets powers though and so does rachel. Katie never gains superpowers and she claims she is fine with it as long as her children continue to save the world for her.