He is usually seen licking a lollipop while watching Janperson fights his assassins. He is mostly seen in his cape, holding a wand. He is able to transform into Ikadevil, a squid monster. In episode 68, he kidnapped Tobei Tachibana and forced him to train him so he can destroy Kamen Rider 1. As a result, Tobei discovers his weak spot: Ikadevil's head! When Kamen Rider 1 came to challenge him, Dr. Shinigami discards his cape and becomes Ikadevil to deal with Ichigo once and for all. Kamen Rider 1 overpowers Ikadevil by giving a Rider Chop on his head. Though defeated by Decade, Diend, and Momotaros, Eijiro survived with no memories of being Dr. Shinigami. As Decade began his attack, Eijiro meets Narutaki who restores his memory as Ryubee Sonozaki gives him a Gaia Memory with full knowledge on Dr. Shinigami to transform Eijiro into Super Dr. Shinigami to lead the reformed Super Shocker.
Bill Goldy was later revived in the Juukou B Fighter finale special by Jagul, who used him as a pawn before absorbing him into her body. Enraged for this act, Bill Goldy personally dragged her to Hell with him.
- Goldex, his american counterpart from Big Bad Beetleborgs.