List of Zatch Bell! characters
Kiyo Takamine, known in the original version as and his Mamodo partner Zatch Bell, known in the original version as , are the main protagonists of the series. Kiyo is a genius 14-year-old junior high school student with an IQ of over 180. His classmates eventually shunned him due to his high intelligence causing him to develop an introverted and apathetic demeanor to the point where he skips school on a regular basis. One day, Zatch, an overly cheerful amnesic boy, is sent by Kiyo's father to live with Kiyo. Zatch's personality slowly influences Kiyo causing him to become more outgoing and friendly and allowing him to befriend many people during the course of the series. Zatch's past is slowly unraveled and reveals he is the son of the current Mamodo King and sealed within Zatch is a power known as . Also brought to light is the fact that Zatch's twin brother, Zeno Bell, was the one who erased Zatch's memory in order to make him suffer. In battle, Zatch's spells revolve around lightning. His most powerful spell, Bao, allows him to create a huge electrical dragon. Kiyo's voice actor is Takahiro Sakurai and his English voice actor is Jason Spisak. Zatch's voice actors are Ikue Ōtani and in the nine final episodes, Konami Yoshida. His English voice actress is Debi Derryberry.
List of Monk characters
Dr. Bell's character has a more considerably constructed background, in sharp contrast to Dr. Kroger. In "Mr. Monk Buys a House", Natalie describes Dr. Bell as a psychiatric genius, and mentions that he has written five books and teaches at Stanford University. Later, in "Mr. Monk Gets Lotto Fever", when Monk confides how he loathes Natalie for getting more attention than him, Dr. Bell is forced to admit to being a diva after writing an unsuccessful book on body language. The episode "Mr. Monk Fights City Hall" reveals that Dr. Bell served on the city council in Tulsa, Oklahoma, but he got bored with the job and started sending his secretary as his proxy.