Dr. Kamikazi is an evil genius scientist and the main antagonist in Robotboy. He tries countless times to steal Robotboy from Tommy and use him to seize control of the world. Unfortunately for Kamikazi, his plans fail him every single time. He is almost always accompanied by his loyal henchman, Constantine, who Kamikazi adopted from an orphanage and raised him from an early age. He uses many different animal clones, experiments and devices to aid him in capturing Robotboy, but ultimately fails every time in his attempts. He was voiced by the late Eiji Kusuhara.