This article is about a/an ally in Kamen Rider Amazons.

Ryusuke Otaki (大滝 竜介 Ōtaki Ryūsuke) is a member of the Nozama Peston Service. He transformed into Dragonfly Amazon (トンボアマゾン Tonbo Amazon) accidentally and lost his mind. He was later killed by Kamen Rider Amazon Omega.



Ryusuke was a member of the Extermination Team who hid his identity as an Amazon. He was with them on their early missions, including the first Spider Amazon, but when going after the second Spider Amazon and first Bat Amazon, he was trapped in the Spider's web and dragged along the ground, pushing him past the edge and awakening his Dragonfly Amazon true identity. AMAZONZ

He had tried to control his Amazon side like Mamoru was, but found it out of his control, attacking his former teammates. He escaped in the confusion of the battle, removing his Amazons Register so he couldn't be tracked. However, he decided that it was best for him to be exterminated so he couldn't attack people, and wanted them to do it, so he called the Team to apologize for his deception, and was tracked to an abandoned construction site. However, Jin Takayama showed up first and became Amazon Alpha, fighting the Dragonfly Amazon until the Extermination Team arrived, but when they hesitate, Ryusuke attacks Jun Maehara, mortally wounding him. The Team opens fire but their bullets do nothing until Mamoru jumps in as the Mole Amazon. Mamoru is injured and fought back, but then Amazon Omega arrives, defeating the Dragonfly with Violent Punish. BEAST INSIDE

Powers & Abilities

04. Dragonfly Amazon

It has a jaw powerful enough to crush steel frames easily, and is good at melee combat with its high agility. Furthermore, it can intercept its enemy with wide field of view with its developed compound eyes. Lurking in the Exterminators, it has hoped to blend into human society as Mamoru does.



Behind the Scenes


Ryusuke Otaki is portrayed by Ryoma Baba (馬場 良馬 Baba Ryōma), better known for his role as Ryuji Iwasaki/Blue BusterIcon-crosswiki in Tokumei Sentai Go-BustersIcon-crosswiki, another series head written by Yasuko Kobayashi. As Dragonfly Amazon, he is portrayed by suit actor Daiki Suzuki (鈴木 大樹 Suzuki Daiki).


  • Ryusuke is similar to Ryuji Iwasaki (the aforementioned character played by Ryoma Baba) in that they are both characters who go berserk in a cloud of steam.
  • Ryusuke becoming a dragonfly monster as a member of the Nozama Peston Service is a reference to the unused dragonfly-motif of Kamen Rider Amazon.



Kamen Riders
Haruka Mizusawa - Jin Takayama - Jun Maehara - Chihiro - Einosuke Mido
(Neo) Amazons Driver - (Neo) Amazonz Register - Junglaider
Other characters
Mizuki Mizusawa - Nanaha Izumi
Nozama Peston Service
Makoto Shido - Ryusuke Otaki - Nozomi Takai - Kazuya Misaki - Kota Fukuda - Jun Maehara - Mamoru
Nozama Pharmacy
Reika Mizusawa - Shogo Kano - Yugo Tachibana - Takaaki Tenjo
Team X
Hiroki Nagase - Kenta Kitamura - Takumi Yamashita - Chihiro
Yugo Tachibana - Shogo Kano - Takeshi Kurosaki - Ichiro Fudamori - Kota Fukuda - Iyu Hoshino - Mizuki Mizusawa
Experiment Amazonz
Spider Amazon 1 - Spider Amazon 2 - Bat Amazon 1 - Dragonfly Amazon - Mole Amazon - Queen Ant Amazon - Soldier Ant Amazon - Butterfly Amazon 1 - Butterfly Amazon 2 - Shrike Amazon 1 - Shrike Amazon 2 - Crab Amazon - Bat Amazon 2 - Wasp Amazon 1
Sigma type Amazonz
Amazon Sigma - Crow Amazon
New type Amazonz
Vulture Amazon - Panther Amazon 1 - Stag Beetle Amazon - Rhinoceros Amazon 1 - Snake Amazon 1 - Mantis Amazon 1 - Urchin Amazon - Baboon Amazon - Elephant Amazon - Weevil Amazon - Rose Amazon - Mantis Amazon 2 - Rhinoceros Amazon 2 - Panther Amazon 2 - Snake Amazon 2
Lysogenic type Amazonz
Amazon Neo - Jellyfish Amazon
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