Kamen Rider Wiki
Kamen Rider Wiki
Icon-krorig.pngThis article is about a villain in Kamen Rider, the original series.

For the reboot version in Kamen Rider The First and Space Shocker, see Shocker Staff: Elderly Gentleman and Space Ika Devil.

Dr. Shinigami (死神博士, Shinigami Hakase, "Dr. Death") is Ika Devil (イカデビル, Ikadebiru), an executive member of Shocker from the Switzerland branch.


Kamen Rider

Before joining Shocker, Dr. Shinigami was known as Ivan Tawanovitch, a half-Japanese, half-Russian citizen who was given the title "Death" due to the deaths of people he met, even if he did not have anything to do with the deaths, and "Doctor" after he graduated from college with a doctorate as a famous researcher.

Shinigami was working with the Nazis during World War 2 when Japan was allied with them. He was working on a way to make replacement bodies for dying people, one of them was his father but it was a failure. His sister had become ill and after an accident in the arctic, her body was frozen. After the war, Shinigami traveled the world after hearing rumors of a monk who can bring back the dead. After finding the monk, Chan Mao, in Tibet, the doctor begged the monk to tell him the secret of bringing back the dead. But the monk refused as the doctor because he is too bound to human emotions. A few years later, Shinigami finds Mao supposedly dead in South America, but Mao had actually just transcended his Earthly body. Mao then asks Shinigami to join him in his goal to take over the world offering to help save his sister.[1]

Shinigami began working in modified human research in Europe, but his creations were destroyed by Kamen Rider One whose constant interference made the doctor focus on defeating the rider. After Colonel Zol's destruction at the hands of Rider Two, Shinigami takes command of Japan's branch.[Deathmatch! The Monster Snowman vs. The Two Riders]

He faces Rider Two in Japan several times and came close to success, but with the help of the original Rider, the Double Riders stopped his plans. Eventually, he left Japan to South America only to be followed by Rider Two.[My Name is Monstrous Bird Guilgaras!]

Shinigami then goes through a reconstruction process to become Ika Devil, a squid monster with the ability to use his tentacles as whips and a pincer claw for his left hand. However, Death predicts he will die in battle.[1] He returns to Japan and works alongside Jigoku Taishi to take down Takeshi Hongo.[The Monster Namazuguiller's Electric Hell]

Hongo confronts a transformed Shinigami as Ika Devil when he's ambushed while testing the New Cyclone. Frustrated by Rider One's continuous interferences, Shinigami decides to attack him personally by kidnapping Tobei Tachibana and forcing him to train him to crush Rider One. However, that just leads to Tobei noticing Ika Devil's weak point, his head.

Finally, Shinigami challenges Takeshi Hongo to a duel. When they meet, Shinigami discards his cape and transforms into his cyborg form, Ika Devil, revealing his identity to Hongo. Shocker Combatmen take care of Kazuya Taki while he fights Hongo. At first, Ika Devil has the upper hand, but with guidance from Tobei, Rider One manages to overpower Ika Devil and weaken him with a Rider Chop aimed at his weak point near the neck before finishing him off with his Rider Drill Shoot.[Dr. Shinigami, The Terrifying Truth Form?]


Dr. Shinigami in V3

Dr. Shinigami, along with Colonel Zol, Jigoku Taishi, and General Black, were resurrected by Doctor G to initiate Operation: Japan Annihilation using a new toxic gas called Girard Gamma. His assignment is Osaka. When Jigoku Taishi captured by V3, he agrees to execute him alongside V3 until Great Leader interference stating they cannot afford to lose even Jigoku Taishi when carried out their mission and let V3 go as he pleases. He died with the other revived commanders when Destron's base accidentally self-destructed.


Main article: Eijiro Hikari

Eijiro Hikari is himself Dr. Shinigami in both movies All Riders VS Dai-Shocker and Movie Taisen 2010.

Let's Go Kamen Riders

40th Ika Devil & Garagaranda.png

Due to a change in history caused by Ankh leaving an O Medal behind in 1971, Shocker created the Shocker Greeed. The Double Riders learn about Shocker's plan and attempt to replace the medal with a tracker device to find their headquarters. However, they had merely secured another fake medal and were ambushed when attacking Shocker, facing a large army of resurrected monsters, which included the recently defeated Ika Devil and Garagaranda. These troops eventually manage to overwhelm and capture the Riders, while their allies escaped. In the present, Ika Devil continued as a Shocker member even as it expanded to include members from other groups that would have been separate organizations in the original timeline, alongside making a huge alliance to lead under its banner the organizations that did appear. When the Riders returned as people's belief in justice partially restored the timeline, Ika Devil along with Ganikoumoru and Garagaranda was destroyed by Kamen Rider Den-O Climax Form's Boistous Slash and Kamen Rider New Den-O's Counter Slash. [OOO, Den-O, All Riders: Let's Go Kamen Riders]

Pretty Den-O Appears!

Ika Devil in Pretty Den-O Appears!

Den-O VS Ika Devil

As Ika Devil, he somehow stole the the Den-Liner, returning with some Shocker Combatmen. In 2020, he kidnaps Anna for her 1989 winning bill she had from her mother. He throws her and Momotaros away from the Den-Liner making them land in 1989. Ika Devil then comes in 1989 too to accomplish his mission. After taking Mai as hostage, he beats Pretty Den-O, and reveals that his plan is to take the money of the winning bill and use it to refund a Shocker secret base, but is afterwards defeated by Den-O Sword Form. [Kamen Rider Den-O: Pretty Den-O Appears!]


Dr. Shinigami

Dr. Shinigami

  • Height:
  • Weight:

Ika Devil

Ika Devil

  • Height: 205 cm
  • Weight: 75 kg

Red Shadow Moon

Red Shadow Moon

  • Height:
  • Weight:
This form is exclusive to Kamen Rider Revice: Special Event.

Kamen Rider Spirits

Dr. Shinigami and other villains in the Spirits Manga.

Video game appearances

Kamen Rider Club

Ika Devil appears as a boss of Shocker which is fought by the six Kamen Riders One, Two, V3, X, Amazon, and Stronger in Kamen Rider Club.

Kamen Rider SD: Sortie!! Rider Machines

Ika Devil in Sortie!! Rider Machines

Ika Devil appears as the second boss at the end of the second stage. He is seen riding in a spider-like mecha and attacks using his tentacles. Kamen Rider Two must damage his vehicle until the legs fall off and then attack the main ship to defeat Ika Devil.

Kamen Rider on Super Famicom

Ika Devil appears as a Shocker boss in the Super Famicom Kamen Rider game.

All Kamen Rider: Rider Generation

Ika Devil in All Kamen Rider: Rider Generation.

Ika Devil appears as a monster in the video game All Kamen Rider: Rider Generation.

Behind the scenes


In Kamen Rider the original series, Dr. Shinigami was portrayed by Hideyo Amamoto (天本 英世, Amamoto Hideyo). In Kamen Rider The First, Shocker Staff: Elderly Gentleman is portrayed via archive various pieces of footage of the late Amamoto recorded before his death in 2003, including several from Kamen Rider, the original series. He was overdubbed by the late Eiji Maruyama (丸山 詠二, Maruyama Eiji).

The Eijiro Hikari version of Dr. Shinigami in Kamen Rider Decade: All Riders vs. Dai-Shocker is portrayed by Renji Ishibashi (石橋 蓮司, Ishibashi Renji), who also appeared as Dr. Super Shinigami in Kamen Rider × Kamen Rider W & Decade: Movie War 2010. Ika Devil's suit actor in All Riders vs. Dai-Shocker was Jiro Okamoto (岡元 次郎, Okamoto Jirō).

In OOO, Den-O, All Riders: Let's Go Kamen Riders, Ika Devil was voiced by Tomokazu Seki (関 智一, Seki Tomokazu), while his suit actor was Toshihiro Ogura (おぐら としひろ, Ogura Toshihiro).

In Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z, Space Ika Devil was voiced by Tomokazu Seki (関 智一, Seki Tomokazu), while his suit actor was Tatsuya Kaneko (金子 起也, Kaneko Tatsuya).


In Japanese, Shinigami (死神) literally translates to "Death God", and is considered equivalent to the Grim Reaper.




  1. 1.0 1.1 Tohru Hirayama's Uchusen Book Collection Special Edition: The Characters I loved
  2. Testimony! Kamen Rider
Icon-krorig.png Kamen Rider
Kamen Riders
Takeshi Hongo - Hayato Ichimonji
Movie/Special Exclusive Riders
Kyoichiro Kuroi - Kamen Rider 4
Manga/Novel Exclusive Riders
Taki Rider - Kamen Rider Gaia
Typhoon - Cyclone - New Cyclone - TriCyclone - Sky Cyclone - Neo Cyclone
Tōbei Tachibana - Kazuya Taki - Ruriko Midorikawa - Hiromi Nohara -Mari - Yuri - Michi - Goro Ishikura - Mayu Tachibana
Kamen Rider
Shiro Kazami - Yuki Joji - Keisuke Jin - Daisuke Yamamoto - Shigeru Jo - Hiroshi Tsukuba - Kazuya Oki - Ryo Murasame - Kohtaro Minami - Momotaros - Kotaro Nogami - Tsukasa Kadoya - Eiji Hino - Gentaro Kisaragi - Kouta Kazuraba - Takeru Tenkuji - Makoto Fukami
Other Heroes
UltramanIcon-crosswiki.png - Ressha Sentai ToqgerIcon-crosswiki.png
Great Leader of Shocker
Colonel Zol - Dr. Shinigami - Jigoku Taishi - Shocker Combatmen
Shocker Kaijin
Man Spider - Bat Man - Scorpion Man - Sarracenian - Mantis Man - Shinigami Chameleon - Wasp Woman - Cobra Man - Gebacondor - Yamogerus - Tokageron - Sabotegron - Pirazaurus (cyborg) - Hitodanger - Kanibubbler - Dokugander - Amazonia - Musasabeedle - Kinokomorgue - Jigoku-Thunder - Mukadelas - Mogurang - Kuragedarl - Zanbronzo - Arigabari - Dokudahlian - Armadillong - Gamaguiler - Alikimedes - Egyptas - Torikabuto - Eiking - Experimental Wolf Man - Snowman - Goaster - Fly Man - Pranodon - Kabibinga - Namekujira - Bearkonger - Todoguiler - Hilguerrilla - Isoguinchack - Kamestone - Unicornos - Guilgaras - Zanjioh - Jaguarman - Sea Snake Man - Cockroach Man - Gilliera - Dokumonde - Beaded Lizard Man - Worm Man - Owl Man - Namazuguiller - Harinezras - Saigang - Semiminga - Kabutorong - Kamikirikid - Gillizames - Guiller Koorogi - Eleki Botaru - Abugomes - Mosquiras - Siomaneking - Silaquiras - Bararanga - Sea Dragons - Imorigues - Unidogma - Poison Scorpion Man
Gel Shocker
General Black - Dr. Dee - Gel Shocker Combatmen
Shocker Riders: Shocker Rider No.1 - Shocker Rider No.2 - Shocker Rider No.3 - Shocker Rider No.4 - Shocker Rider No.5 - Shocker Rider No.6
Ganikoumoru - Sasori Tokagues - Kurage Wolf - Ino Kabuton - Isoguin Jaguar - Utsubo Games - Washi Kamaguilli - Kumo Lion - Neko Yamori - Canary Cobra - Nezucondor - Mukade Tiger - Haetori Bachi - Ei Dokugar - Namekuji Kinoko - Garaox - Saboten Bat
Nova Shocker
Urga - Igura - Buffal - Nova Shocker Combatmen