Icon-w.png This article is about a/an ally in Kamen Rider W.

"Watcherman" (ウォッチャマン Wotchaman) is the username of an otaku blogger who serves as Shotaro Hidari's informants on Dopant activities. His real name, like the other Futo Irregulars, is unknown.

Part in Story

Watcherman appears throughout the series like the aforementioned informant. He owns a Futo-kun Bicycle that he won in a mail-in contest. Akiko used the bike to chase after a garbage truck that had a doll that belonged to the Puppeteer Dopant.

In Kamen Rider W Forever: A to Z/The Gaia Memories of Fate, Watcherman finds the T2 Violence Gaia Memory, which forces him to become the T2 Violence Dopant. He is freed after Kamen Rider Double LunaJoker used the Joker Strange on him and Santa-chan as the Ice Age Dopant. He and Santa-chan explain what happened and end up in a free clinic where they stay during NEVER's attack.

It is presumable that he still helped the Narumi Detective Agency after W`s series ended.

Futo Detective

Watcherman, as seen in Futo Detective.

Watcherman was contacted by Shotaro to investigate the mysterious witch his client was looking for, at first having no leads. However, he later contacted Shotaro about rumours and reports online of "The Witch of the T Junction", a beautiful thief who steals women's clothes and robs men of their money. Shotaro thanks him and pays Watcherman for his information, only for the two of them to see the fabled witch in front of them. Shotaro tells Watcherman to run to safety, but the excited otaku tries to take a photo of her with his phone only for Shotaro to accidentally knock it out of his hand and break it while chasing after the witch.Be Wary of the T/The Man who fell in Love with a Witch

Video Game appearances

Kamen Rider Travelers Record

Watcherman with Kamen Rider Fourze as seen in Kamen Rider Travelers Record.

Watcherman appears in the video game Kamen Rider Travelers Record.

Dopant Form

Violence Dopant

Violence Ball

  • Height: 230cm
  • Weight: 420kg

As the brutish Violence Dopant (バイオレンス・ドーパント Baiorensu Dōpanto), his left arm is strong enough to destroy anything in its path, even enough to smash through cars. He can compress his body into a wrecking ball-like form called the Violence Ball (バイオレンスボール Baiorensu Bōru) to cause more collateral damage.

Behind the Scenes

Concept Art

Violence Dopant was designed by Katsuya Terada (寺田 克也 Terada Katsuya).


  • His bike, Fuuto-kun' was won in a sweepstake. This is a nod to the actor appearing in Susunu Denpa Shonen where he was locked in a room until he won 1,000,000 yen worth of prizes from postcard sweepstakes.
Narumi Detective Agency
Shotaro Hidari - Philip - Akiko Narumi - Sokichi Narumi† - Tokime
Memory Drivers
Double Driver - Accel Driver - Lost Driver
Gaia Memory-related
Gaia Memories - Memory Gadgets - Fang Memory - Xtreme Memory - Trial Memory - Gaia Memory Enhancing Adapter
Metal Shaft - Trigger Magnum - Engine Blade - Skull Magnum - Prism Bicker - Eternal Edge - Shroud Magnum
RevolGarry - HardBoilder - Gunner A - Diablossa - SkullBoilder - SkullGarry - HardMammother
The Fuuto Irregulars
Santa-chan - Watcherman- Queen & Elizabeth - Isamu Bito
Futo Police Department
Ryu Terui - Mikio Jinno - Shun Makura
Museum and the Dopants
Foundation X
The Sonozaki Family: Terror - Claydoll - Taboo/R Nasca - Nasca - Smilodon - Masquerade Dopants
Dopants: Magma Dopant - T-Rex Dopant - Money Dopant - Anomalocaris Dopant - Cockroach Dopant - Sweets Dopant - Virus Dopant - Violence Dopant - Arms Dopant - Bird Dopant - Ice Age Dopant - Triceratops Dopant - Liar Dopant - Puppeteer Dopant - Invisible Dopant - Nightmare Dopant - Beast Dopant - Zone Dopant - Yesterday Dopant - Quetzalcoatlus Dopant - Gene Dopant - Jewel Dopant - Old Dopant - Utopia Dopant - Energy Dopant
Movie Exclusive Villains: Dummy Dopant - Heat Dopant - Trigger Dopant - Metal Dopant - Luna Dopant - Cyclone Dopant - Bat Dopant - Spider Dopant - Kamen Rider Eternal - Commander Dopant - Eyes Dopant
Novel-Exclusive Villains (The One Who Continues After Z): Zoo Dopant - Zero Dopant - Queen Bee Dopant - Flower Dopant - Elephant Dopant - Dolphin Dopant - Salamander Dopant - Fish Dopant - Bird Dopant - Ape Dopant - Bee Dopants
Manga Exclusive Villains (Futo Detective): Road Dopant - Aurora Dopant - Meganeura Dopant -Brachiosaurus Dopant - Scream Dopant - Alcohol Dopant - Puzzle Dopant - Reactor Dopant - Antlion Dopant - Owl Dopant - Trash Dopant - Caracal Dopant - Toadstool Dopant
Yukiji Bando - Kazuha - Hideo - Mamoru Nikaido - Sabu
Katsumi Daido - Maria S. Cranberry - Reika Hanehara - Kyosui Izumi - Gozo Domoto - Ken Ashihara
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