Kiyo Takamine and Zatch Bell
Kiyo Takamine, known in the original version as and his "Mamodo" (known in Japanese as a ) partner Zatch Bell, known in the original version as , are fictional characters in the anime and manga franchise "Zatch Bell!" by Makoto Raiku. Mamodos are beings from another world with supernatural powers. The series begins when Kiyo, by the request of his father, is told to take care of Zatch. Eventually, they become involved in a tournament between Mamodos where the winner becomes king of the Mamodo World.
Zack Taylor
Zack appears in the 2017 film reboot, played by Chinese-Canadian actor Ludi Lin. He is initially introduced as a school truant with an apparent need for adrenaline, willing to attempt the team's more extreme stunts, such as jumping over a chasm. In the course of the film, it is revealed that he lives in a mobile home park with his ill mother, and Zack is her only carer. Zack is bilingual, speaking English, and using Mandarin Chinese to communicate with his mother. He is the first Ranger to try and pilot his zord, despite being told that it is only controllable once they have morphed, taking the Mastodon on a run through the hills. He rallies in time to assist the team in facing Rita in the final battle.