(I'm just going to do this for fun. I think I need another character. Especially a Disney one. I don't expect this to be accepted, but if it is, I'll be thrilled.)

Name: Baymax
Gender: He's a robot with a male voice?
Age: He's a robot.
Kingdom: No, because he's from the future?
Powers?: Karate moves, rocket-powered fist, and the ability to fly.
Personality: Baymax, if explained in a word, overprotective. While he does possess the abilities to save lives, he does tend to take things too far when he cares for lives, such as his pain scale from 1-10. He does not deactivate unless the person he is treating says, "I am satisfied with my care."
History:(optional) Baymax was created by Tadashi Hamada to revolutionize the medical science field, and change the world. Hiro, Tadashi younger brother met Baymax, and Hiro wanted to join the school Tadashi studied at. After making micro-bots that could form into any shape, Hiro was accepted into the school, however a fire broke out at the expo, and the professor that taught Tadashi was trapped inside. Tadashi went inside to rescue the professor, but was killed when the building exploded. Three weeks later, Hiro accidentally activated Baymax when he let out a cry of pain.
Together, they discovered someone was using the micro-bots that Hiro created for evil. After tracking down the source of the micro-bots, Hiro, and Baymax created the Big Hero 6 which included them and a couple of friends of Tadashi. GoGo-Tomago, Wasabi, Honey Lemon, and Fred teamed up with them, and discovered that the man behind the mask was none other then the professor Tadashi tried to rescue. In his anger, Hiro removed Baymax's Health Care chip, which made Baymax turn into a killing machine. The chip was returned to Baymax, just before he could hurt the professor who in the chaos escaped.
After a fight between the team, Hiro, and Baymax left. Hiro tried to remove the chip again, but Baymax didn't let him. After showing Hiro that killing the professor was not what Tadashi would have wanted, the team got back together. After finding out that the professor wanted revenge on the CEO of a large science company because his daughter was trapped, and was presumed killed when an experiment with teleportation went awry, they fought against the professor, and won.
Just as they were about to destroy the portal that the professor was using to destroy the CEO's pride, and joy, his business, Baymax detected a life sign in the warp field. Together, the two friends rushed into the portal, and found the professor's daughter alive, but in hyper-sleep. The two rescued her, but on the return trip, Baymax's armor was damaged, and he was unable to move. Baymax sacrificed his life to save Hiro's. However, he had put the health care chip into his gloved fist which had all the health care techniques as well as his memories. Hiro rebuilt Baymax, and together the two friends continued to fight crime with they're friends as the Big Hero 6.
Family: Hiro?
Other: No

Name: Hiro Hamada
Gender: Male
Age: 14
Kingdom: Same place where Baymax is from, so....no.
Powers?: His smarts. He's a genius...what do you expect? He doesn't have any super power though. He just rides on Baymax's back.
Personality: Hiro is a genius. While he tends to be shy, he is very friendly. Sometimes, he let's his anger cloud his judgement, but he always corrects the problems in his life.
History:(optional) Same as Baymax's.
Family: His Aunt Cass, and Baymax.
Other: No.