This article is about a/an rider in Kamen Rider Den-O.
"I will devour everything!"
―Gaoh's phrase[src]

Gaoh (牙王 Gaō, lit. "Fang King") is Kamen Rider Gaoh (仮面ライダーガオウ (牙王) Kamen Raidā Gaō, lit. "Fang King"), a fictional character appearing in Kamen Rider Den-O. He is the main villain in Kamen Rider Den-O's first movie, Kamen Rider Den-O: I'm Born!.


He is a thief-king who targets Time Trains and a renegade Kamen Rider who wishes to take over all of space-time by obtaining the legendary GaohLiner to destroy all time as he was fed up with it. He and his Imagin followers took camp at May 2000 to await his plan to come to fruition, by sending the Molech Imagin to 2007 to set the pieces up.

Video Games Appearances

All Kamen Rider: Rider Generation 2


Gaoh in All Kamen Rider: Rider Generation 2.

Gaoh appears as a monster in the video game All Kamen Rider: Rider Generation 2.

Kamen Rider: Battride War II


Gaoh as he appears in Kamen Rider: Battride Wars II

Gaoh will appears as a one of movie Kamen Riders in Kamen Rider: Battride War II. Hiroyuki Watanabe also reprises his role.


Plat Form
Gaoh Plat Form

Gaoh Plat Form

Plat Form (プラットフォーム Puratto Fōmu) is Gaoh's most basic default form undersuit, which is briefly seen during Gaoh`s transformation sequence before the Aura Armor and the Denkamen facemask attaches.

Gaoh Form

Gaoh Form

"Gaoh Form!"
―Transformation announcement[src]
  • Height: 198cm
  • Weight: 102kg
  • Punching power: 7t
  • Kicking power: 6t
  • Maximum Jump Height: 25m
  • Maximum Running Speed: 100m/6.2s

Kamen Rider Gaoh is the only Kamen Rider in Kamen Rider Den-O to only have one form, called Gaoh Form (ガオウフォーム Gaō Fōmu), and no Imagin partner (similar to Zeronos Altair Form). It is visually based on a crocodile and is similar to Den-O Sword Form. Upon transforming, Gaoh says "I will devour everything!" (全員、俺が喰ってやる! Zen'in, ore ga kutte yaru!).

Appearances: Den-O Episodes 25, 27, I'm Born!






Wizard Amadum 03

Amadum as Gaoh.

Amadum, the ruler of the world within the Magic Stone with a penchant for dressing as past villains fought by Kamen Riders, appears in Gaoh's costume in Neverending Story.

Behind the scenes


Gaoh is portrayed by Hiroyuki Watanabe (渡辺 裕之 Watanabe Hiroyuki). He previously played Akio IshimuroIcon-crosswiki, the commander of XIGIcon-crosswiki, in Ultraman GaiaIcon-crosswiki, and Taiga SaezimaIcon-crosswiki in Garo (series)Icon-crosswiki. As Kamen Rider Gaoh, his suit actor was Yoshifumi Oshikawa (押川 善文 Oshikawa Yoshifumi).


  • He first appeared in episode 27 of the series but he only transformed into Kamen Rider Gaoh in the movie. Gaoh is the first movie Rider to appear in one TV series episode.
  • Kamen Rider Gaoh was originally supposed to be reused with Kamen Rider Diend Complete Form but his suit was destroyed for scraps to be used for Kamen Rider Yuuki. Despite this, Yuuki never made it as one of Diend Complete Form's cards.[Citation needed]