Dr. Tenma

Dr. Tenma is the main antagonist in The Adventures of Kari & Friends. He comes up with evil plans to use robots to take over the world, but is always stopped by Kari Kamiya & her friends. Because of this, he thinks of Kari & her friends to be threats and will do anything to get rid of them including killing them. Kari's friend, Zoran is a constant target to him because he always captures her to make Astro Boy do what he says. In the end of this arc, he creates RoboDog to destroy Metro City & the children that keep getting in his way while holding Zoran and Amy Yeager hostage.

Personality
Dr. Tenma is very aloof, cold, calm, & calculating. He is the creator of Astro Boy and soughts to get him back at any means possible.

Kari & Friends Meet Dr. Tenma
Kari and her friends, Mei, and their Digimon sense trouble. Kari sees a woman and her baby running from a evil rampaging robot. Zoran, her friend explains that it's always like this and that her big brother is always there to help. A mysterious man in a coat and wearing shades approaches the children and tells them to sit back and watch as there's nothing they can do to stop it. Zoran recognizes him right away and calls him out. Dr. Tenma reveals himself to the children. Kari & Gatomon tell Dr. Tenma that they will stop him. Dr. Tenma takes interest in Gatomon noting that she wasn't from this dimension. Kari says that she's a Digimon and demands to know what about it. Kari then says if Gatomon can't help, then she will stop him from hurting innocent people and tells him that he's acting just like Myotismon who had attempted to kill Kari and Gatomon in the past. Dr. Tenma asks Kari & her friends to join him. But Kari refuses and Dr. Tenma then tells them that they're a threat and that he will see to getting them out of the way even killing them. Gatomon angrily tells Dr. Tenma that if he puts his hands on Kari, he will regret it. Dr. Tenma just laughs evilly. Gatomon begins to growl and Kari's Digivice activates allowing Gatomon to Digivolve to Angewomon who flies at Dr. Tenma. Dr. Tenma then tries to shoot Angewomon. Instead of heading towards Angewomon, the blast is coming towards Kari whom Angewomon grabs and carries her out of the way just in time. The other children had managed to make it safety thanks to Beezlemon, Antylamon, & Sparrowmon. Dr. Tenma then calmly tells the children to stay out of his way or else he will eliminate them one by one. Suzie then says I don't wike that man. He's bad while glaring at Dr. Tenma as he walks away. Astro Boy who had just saved the woman and her baby spots Zoran and flies down to her grasping her in a hug asking her if she was alright. Zoran shakes her brother off and introduces him to her human friends. Astro offers to take Kari & her friends to his place to keep them safe. But a woman with orange hair approaches the children and tells them that they did a good deed standing up to Dr. Tenma and offers them a place to stay. Kari asks the lady who she is and the lady recognizes Kari asking her if she is Kari Kamiya, Tai's little sister. Kari asks how she knows Tai. The lady says that she's a descendant of Sora Takenouchi, Tai and Kari's friend. Kari & her friends gasp. She introduces herself as Sarah Takenouchi and allows the children with the exception of Zoran who goes home with her brother and promises to meet up with them again for more adventures to stay at her place.