|This article is about a/an Orphenoch in Kamen Rider 555.|
|Episodes:|| The Door to Darkness|
The Dark Laboratory
|Season:||Kamen Rider 555|
Yoshio Kobayashi (小林 義雄 Kobayashi Yoshio) is the human form of the Rabbit Orphnoch (ラビットオルフェノク Rabitto Orufenoku). He is able to hear up to 4 kilometers away, jump up to 25 meters, and is equipped with a bladed boomerang.
A young man who just became an Orphnoch. He attempted to commit suicide but was saved by Naoya Kaido who brought him under his wing. The two managed to trick the Faiz and Kaixa belts away from Takumi and Kusaka. However, Murakami told the pair that only one of them could join Lucky Clover, offering the position to the one who kills Yuji Kiba. By then, Yoshio took Kaido's words to heart and got dirty by abducting Yuka Osada, which vexed Kaido. Though he escaped retribution from the Renegade Orphnoch, Yoshio was killed by Kaixa's Gold Smash.