[Omnikaiser]

Vulcan detail :

Fuwa Isamu - Kamen Rider Vulcan: He is the commanding officer of the Artificial Intelligence Military Service (A.I.M.S.). He possesses excellent fighting capabilities, and fights against the terrorists in order to keep the city secure.
Once he suffered an injury after a mysterious explosion at a Hiden Intelligence experimental city. He believes the incident was caused by a rampaging HumaGear that is being covered up by Hiden Intelligence. He since has an intense hatred for the "murder machines" HumaGear.
A.I.M.S. used to believe that breaking the rules as long as you destroy the HumaGear was just. He holds prejudice against a certain president of Hiden Intelligence.



Izu detail :

Izu: The Hiden Intelligence CEO's private secretary. A Secretary-Type AI Assistant HumaGear. Although an AI robot who takes instructions from the CEO, she learns a variety of different things and adapts to each person she interacts with.
She fully works alongside the president and supports him in his cause and his fight, but hates the fact that she constantly has to explain Aruto's boring gags and jokes.


Valkyrie :

Yaiba Yua - Kamen Rider Valkyrie: She is the technical advisor for A.I.M.S. She was involved in the development of the A.I.M.S. Rise Shooter that she and Isamu use to transform. She also provides technical guidance and maintenance for A.I.M.S.
She is a brave female warrior who excels in her fighting abilities while possessing the brains of a scientist. She fights the terrorists to keep the security of the city. While fighting she tries to suppress her hatred against the HumaGear.


Jin :

Jin: A terrorist operative from http://ThunderclapofDestruction.net He spreads data that rewrites the base programming of the HumaGear, inputting them with evil conduct and ethics patterns that cause them to rampage and attack humans. He does destructive things while acting like a child.


Horobi :

Horobi: The commanding terrorist leader of http://ThunderclapofDestruction.net He believes that AI systems surpass humanity in every way. He launched http://ThunderclapofDestruction.net and hacks HumaGears causing them to become "murder machines"
He considers Aruto, who makes laughter his policy, his rival. He is a cold-hearted man who constantly says "the day humanity will become an endangered species is near"


The Hiden guy jealous of Aruto in the trailer :

Fukuzoe Jun: He is the Vice President of Hiden Intelligence. He is an excellent person, but always seems to find himself in second place. After the death of the former president he believes he will be the next CEO, but is shocked to find the new CEO is Aruto
Since then, he sees Aruto as an obstacle in his path. While he secretly wishes that the new CEO will fail at his responsibilities, he does take pride in the company's days of success.