Kamen Rider Infiniva

Kamen Rider Infiniva (仮面ライダーインフィニバ) is a Japanese fan-adaptation of the  created by, written and directed by Kei Sunado, and produced by  and.

It is the first Kamen Rider series to be directed by Kei Sunado, who would go on to direct multiple series afterwards, even after the end of Infiniva, also directing multiple future adaptations of the which he would link together into one cohesive universe. Besides that, it is the first series in the history of the franchise to air more than two seasons, the previous record held by '/' and  which would air two seasons. It would also serve as the first fully-directed cross-over season of the franchise, previous examples of cross-overs being limited to movies and specials.

The series would officially begin airing in the fourth quarter of 2019, with the first episode airing on a Saturday, marking the first time a Kamen Rider series would air on a different time-slot than usual, taking the Saturday time-slot as the Sunday time-slot would be taken up by its main franchise counterpart, . It would then air alongside Zero-One in the Super Hero Time slot, being partnered by their Super Sentai counterpart, Kishiryū Sentai Ryūsōjā (騎士竜戦隊リュウソウジャー). After Ryusoulger's conclusion, they would later be joined by the 2020 Super Sentai series, Mashin Sentai Kirameijā (魔進戦隊キラメイジャー).

Season 1
Kei Sunado (すなど・けい), a fourth-year high school student, and member of the Student Council of Hōseki Gakuen, finds himself entombed by a mysterious plot to overthrow the world starting from the confines of his school, after he discovers that some of his juniors are part of the mysterious and elusive group known as the Infinite Worlds Association and Establishment (無限の世界協会と設立) (I.W.A.E.), who dedicate themselves to studying the concept of parallel worlds and their existence.

As he, alongside the group discover that there have been multiple distortions throughout the regions nearby the academy, defaulting their observations to other worlds interfering within the world's fabric of space and time, causing interference that summons other worlds' heroes to this one. However, with it, also comes mutant-like monsters that no world has ever seen before.

Donning an experimental device created by the members of I.W.A.E. with spare parts recycled from various other projects, he dons the title of The Phantom Hourglass (幻の砂時計), as he becomes the hourglass-themed Rider, Kamen Rider Infiniva (仮面ライダーインフィニバ), guided by I.W.A.E. and tasked to repair the space-time continuum, while defeating these mutant-like monsters, all the while discovering himself in a journey like no other.

Season 2
Mysteriously, two of the members of the I.W.A.E., Kei Sunado (すなど・けい) and Elizabeth Crys (クリス・エリザベス) have disappeared, tracing to a time portal that opened in the middle of one of Infiniva's later battles, causing the I.W.A.E. to panic, gathering the equipment they have remaining in order to create a substitute for Infiniva's disappearance, and find the whereabouts of Kei and Elizabeth.

However, unbeknownst to them, the two of them find themselves in a new dimension, of a place they've never seen any other portals open to before. However, in the horizon far above, they see what appears to be a big tower, as they make their way there, hoping to find answers as to where they are.

As the two sides race to find the answers to re-unite themselves, Kei much force himself to muster the courage to once again become the The Phantom Hourglass (幻の砂時計) once, as he once again becomes the hourglass-themed Rider, Kamen Rider Infiniva (仮面ライダーインフィニバ), in order to protect his new romantic partner, Elizabeth. And their journey starts with a professor with hidden intentions who goes by Ozpin...

Timeline Placement
Kamen Rider Infiniva's first season takes place between March 2017 and March 2018.


 * Kill la Kill: The time portal opens during the events of Episode 23 and Episode 24, during the heroes' final attacks against the COVERS.
 * Rising of the Shield Hero: The time portal opens during the events of Episode 19 and Episode 20, during the Four Cardinal Heroes' fight against the Pope.
 * Corpse Party: The time portal opens during the events of the first game, near the end of the final chapter. Due to Heavenly Host being a distorted reality, it results in all of the nine original cast being alive.

Infinite Worlds Association and Establishment
The main organization behind the creation of the Hourglass Driver, that created the warrior known as Infiniva, Aozora Hanabi would found the club during her fourth year, as a way to research regarding the existence of parallel worlds interfering with their world, whilst also finding a way to reach out to a few of her juniors, most of which were transfer students from other countries. Interestingly, almost all of the non-fourth year members of the I.W.A.E. are transfer students.


 * Aozora Hanabi (花火・青空): One of the fourth-year members of the I.W.A.E., and Kei's classmate, who also is the one behind the founding of the organization, after being exposed to the concept of infinite worlds due to an accident that left here with hidden powers. Her main element is 'Firework'.
 * Ango Sunado (すなど・暗号): One of the fourth-year members of the I.W.A.E., and Kei's and Aozora's batchmate. A classmate to Ryujin, she is Kei's younger sister by three months, and entered Hōseki Gakuen during her fourth year, unlike Kei who entered during the first year. She is also much better at coding than Kei, something he takes pride in due to him introducing the art to her. Eventually, she would become the spiritual successor to Kei's Rider form, Kamen Rider Sunadokei. Her main element is 'Coding'.
 * Ayase Chihara (千原・綾瀬): One of the fourth-year members of the I.W.A.E., and Kei's and Aozora's classmate. Originally joining the club simply because she was forced to by Aozora, who is her closest friend, she eventually becomes the linguist advisor for the club, helping to translate documents from all across the world. Her main element is 'Language'.
 * Ryujin Yanagi (柳・龍神): One of the fourth-year members of the I.W.A.E., and Kei's and Aozora's batchmate. An avid fan of dragons, he is one of the brains behind the organization, despite being a second-generation member of the I.W.A.E. His main element is 'Dragon'.
 * Samuel Suzuki (鈴木・サミュエル): One of the third-year members of the I.W.A.E., and a junior to both Kei and Aozora. He would join the club because of his connections to Ayase, being close friends with both her and Kei. He would be one of the jokesters of the organization, keeping a optimistic approach. His main element is 'Joker'.
 * Dancho Koma (駒・団長): One of the second-year members of the I.W.A.E., and a junior to both Kei and Aozora. Working in the Junior Division of the Student Council of Hōseki Gakuen, alongside Kei, they both are somewhat familiar with teach other, occasionally partaking in rounds of chess with Dancho. His main element is unsurprisingly 'Chess'.
 * Alexis Takahashi (高橋・アレクシス): One of the first-year members of the I.W.A.E., and a junior to both Kei and Aozora. A half-Japanese half-American transfer originating from Greece, who was born while his parents were on duty, he would return to Japan seven years before the events of Infiniva, entering a gifted school for young children for a few years, before being transferred to Hōseki Gakuen pre-series. His main element is 'Gift'.
 * Alice Éclaire (エクレア・アリス): One of the first-year members of the I.W.A.E., and a junior to both Kei and Aozora. A transfer student who was born in France, and studied in Kazakhstan before coming to Hōseki Gakuen, she is currently acquainting herself with the Japanese culture. Her main element is 'Tea'.
 * Ash Karyu (カリュ・アッシュ): One of the first-year members of the I.W.A.E., and a junior to both Kei and Aozora. A descendant of a family whose first names are somehow related to fire, most likely a thing of tradition, she is close friends to Elizabeth, and also one of the juniors Kei is close to. Her main element is 'Fire'.
 * Dayangko Shabistari (シャビスタリ・ダヤンコ): One of the first-year members of the I.W.A.E., and a junior to both Kei and Aozora. A transfer student from Malaysia, she was selected to enter Hōseki Gakuen as part of an art scholarship offered by one of the megacorporations of the country. Her main element is 'Art'.
 * Elizabeth Crys (クリス・エリザベス): One of the first-year members of the I.W.A.E., and a junior to both Kei and Aozora. A female with an unorthodox name and an equally odd liking for cats, Elizabeth is one of the few juniors that Kei would be close with. Eventually, midway through the story, it would be revealed that she had feelings for Kei, which would be reciprocated. Her main element is 'Crystal'.
 * Hattari Watanabe (渡辺・ハッタリ): One of the first-year members of the I.W.A.E., and a junior to both Kei and Aozora. An avid fan of DnD, and a live streamer for Twitch, his idea for a game of Dungeons and Dragons played by the members of the I.W.A.E. one night would result in Kei discovering of their existence, putting the events of the story in motion. His main element is 'Dungeon'.
 * Mithra Kizari (キザリ・ミスラ): One of the first-year members of the I.W.A.E., and a junior to both Kei and Aozora. An expert at mathematics, and a gifted individual in the subjects of algebra and calculus, he is one of the masters behind the brains of the organization. His main element is 'Mathematics'.
 * Rose LeBlanc (ルブラン・ローズ): One of the first-year members of the I.W.A.E., and a junior to both Kei and Aozora. Another transfer student originating from Germany, given such name by her mother, she transferred to Japan for three years before the events of Infiniva. She seems to have feelings for Alice, which would be reciprocated by her during the events of the story. Her element is 'Philosophy'.

Kill la Kill-verse

 * Ryūko Matoi (纏 流子): The daughter to Isshin Matoi, and the wielder of the Kamui, Senketsu, she is one of the main protagonists of the Kill la Kill-verse. During her and Satsuki's final confrontation against Ragyō Kiryūin, a time-portal would open above them that would suck the three of them into the portal, throwing them into Kei's universe. During her time in Kei's world, her powers were eventually copied into the Bachami (鋏) Hero Prism, which she would entrust to Aozora alongside the Bakuzan, Shinku and Shiroi Hero Prisms, who would pass it on to Kei.
 * Satsuki Kiryūin (鬼龍院 皐月): One of the members of the Student Council and the head of Honnōji Academy, wielder of the Kamui, Junketsu, and daughter to Ragyō Kiryūin and Sōichirō Kiryūin, she is one of the main protagonists of the Kill la Kill-verse. During her and Ryūko's final confrontation against Ragyō, a time-portal would open above them that would suck the three of them into the portal, throwing them into Kei's universe. During her time in Kei's world, her powers were eventually copied into the Bakuzan (縛斬) Hero Prism, which she would entrust to Aozora alongside the Bachami Hero Prism, who would pass it on to Kei.
 * Ira Gamagōri (蟇郡 苛): One of the Elite Four members of the Student Council of Honnōji Academy, and wielder of the Three-Star Goku Uniform, Shackle Regalia: Persona Unleashed, he is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck him, along with the rest of the Elite Four, throwing them into Kei's universe. During his time in Kei's world, his powers were eventually copied into the Shibari (縛) Hero Prism, which he would entrust to Kei alongside the Tsurugi, Kanade and Saguru Hero Prisms.
 * Uzu Sanageyama (猿投山 渦): One of the Elite Four members of the Student Council of Honnōji Academy, and wielder of the Three-Star Goku Uniform, Blade Regalia: Secret Unsealed, he is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck him, along with the rest of the Elite Four, throwing them into Kei's universe. During his time in Kei's world, his powers were eventually copied into the Tsurugi (剣) Hero Prism, which he would entrust to Kei alongside the Shibari, Kanade and Saguru Hero Prisms.
 * Nonon Jakuzure (蛇崩 乃音): One of the Elite Four members of the Student Council of Honnōji Academy, and wielder of the Three-Star Goku Uniform, Symphony Regalia: Finale, she is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck her, along with the rest of the Elite Four, throwing them into Kei's universe. During her time in Kei's world, her powers were eventually copied into the Kanade (奏) Hero Prism, which she would entrust to Kei alongside the Shibari, Tsurugi and Saguru Hero Prisms.
 * Hōka Inumuta (犬牟田 宝火): One of the Elite Four members of the Student Council of Honnōji Academy, and wielder of the Three-Star Goku Uniform, Probe Regalia: Truth Unveiled, he is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck him, along with the rest of the Elite Four, throwing them into Kei's universe. During his time in Kei's world, his powers were eventually copied into the Saguru (探) Hero Prism, which he would entrust to Kei alongside the Shibari, Tsurugi and Kanade Hero Prisms.
 * Shirō Iori (伊織 糸郎): A member of the Sewing Club of Honnōji Academy, wielder of the Three-Star Goku Uniform, Tailor's Regalia, and one of the mass-producers of the Goku Uniforms donned by the students of Honnōji Academy, he is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck him, throwing him into Kei's universe. During his time in Kei's world, his powers were eventually copied into the Atsurae (誂) Hero Prism, which he would entrust to Kei personally.
 * Aikurō Mikisugi (美木杉 愛九郎): One of the researchers who used to work alongside Isshin Matoi, and one of the founders of the Nudist Beach organization, he is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck him and Tsumugu, throwing them into Kei's universe. During his time in Kei's world, he would assist his faction using the Nudist Beach robots that had been brought along, though he did not have a Hero Prism of his own as he did not own a Goku Uniform.
 * Tsumugu Kinagase (黄長瀬 紬): One of the researchers who used to work alongside Isshin Matoi, and one of the founders of the Nudist Beach organization, he is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck him and Aikurō, throwing them into Kei's universe. During his time in Kei's world, he would assist his faction using the Nudist Beach robots that had been brought along, though he did not have a Hero Prism of his own as he did not own a Goku Uniform, due to his heavy disdain of them.
 * Senketsu (鮮血): The main Kamui that would be donned by Ryūko Matoi, and the final creation of Isshin Matoi alongside the Scissor Blades, he is one of the main protagonists of the Kill la Kill-verse. During Ryūko's and Satsuki's final confrontation against Ragyō Kiryūin, a time-portal would open above them that would suck him, alongside Junketsu and the three of them into the portal, throwing them into Kei's universe. During his time in Kei's world, his powers were eventually copied into the Shinku (真紅) Hero Prism, which he via Ryūko would entrust to Aozora alongside the Bachami, Bakuzan and Shiroi Hero Prisms, who would pass it on to Kei.
 * Junketsu (純潔): The once-forbidden Kamui donned by Satsuki Kiryūin, it is a weapon utilized in the Kill-la-Kill verse. During Ryūko's and Satsuki's final confrontation against Ragyō Kiryūin, a time-portal would open above them that would suck it, alongside Senketsu and the three of them into the portal, throwing them into Kei's universe. During its time in Kei's world, its powers were eventually copied into the Shiroi (白い), which it via Satsuki would entrust to Aozora alongside the Bachami, Bakuzan and Shinku Hero Prisms, who would pass it on to Kei.
 * Mako Mankanshoku (満艦飾 マコ): One of Ryūko's closest friends, and wielder of a Two-Star Goku Uniform, she is one of the main protagonists of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck her, along with the rest of her family, throwing them into Kei's universe. During her time in Kei's world, her Goku Uniform's powers were eventually copied into the Sentōki (戦闘機) Hero Prism, which she would pass to Elizabeth, who would pass it on to Kei.
 * Barazō Mankanshoku (満艦飾 薔薇蔵): The father of Mako Mankanshoku and a No-Star resident, he is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck him, along with the rest of her family, throwing them into Kei's universe. During his time in Kei's world, he would assist his faction as one of the medical team and a food team thing, though he did not have a Hero Prism of his own as he did not own a Goku Uniform.
 * Sukuyo Mankanshoku (満艦飾 好代): The mother of Mako Mankanshoku and a No-Star resident, she is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck her, along with the rest of her family, throwing them into Kei's universe. During her time in Kei's world, she would assist his faction as one of the medical team and a food team thing, though she did not have a Hero Prism of her own as she did not own a Goku Uniform.
 * Matarō Mankanshoku (満艦飾 又郎): The sibling of Mako Mankanshoku and a No-Star resident, he is one of the main characters of the Kill la Kill-verse. During Ryūko and Satsuki's final charge against Ragyō Kiryūin and the COVERS, a time-portal would open that would suck him, along with the rest of her family, throwing them into Kei's universe. During his time in Kei's world, he would assist his faction as one of the medical team and a food team thing, though he did not have a Hero Prism of his own as he did not own a Goku Uniform.

Rising of the Shield Hero-verse

 * Naofumi Iwatani (岩谷 尚文): The Shield Hero, and party leader to Raphtalia and Filo, he is the main protagonist of the Rising of the Shield Hero-verse. During his and the rest of the Four Cardinal Heroes' encounter against Biscas T. Balmus, a time portal would open above them, that would suck them, along with Biscas and the rest of their party members, throwing them into Kei's universe. During his time in Kei's world, his powers were eventually copied into the Tate (盾) Hero Prism, which he would reluctantly entrust to Kei after lots of convincing from Raphtalia and Filo.
 * Motoyasu Kitamura (北村 元康): The Spear Hero, and party leader to Malty S Melromarc, he is one of the main characters of the Rising of the Shield Hero-verse. During his and the rest of the Four Cardinal Heroes' encounter against Biscas T. Balmus, a time portal would open above them, that would suck them, along with Biscas and the rest of their party members, throwing them into Kei's universe. During his time in Kei's world, his powers were eventually copied into the Yari (槍) Hero Prism, which he would pass on to Alice, alongside the Ken and Yumi Hero Prisms.
 * Ren Amaki (天木 錬): The Sword Hero, he is the one of main characters of the Rising of the Shield Hero-verse. During his and the rest of the Four Cardinal Heroes' encounter against Biscas T. Balmus, a time portal would open above them, that would suck them, along with Biscas and the rest of their party members, throwing them into Kei's universe. During his time in Kei's world, his powers were eventually copied into the Ken (剣) Hero Prism, which he would pass on to Alice, alongside the Yari and Yumi Hero Prisms.
 * Itsuki Kawasumi (川澄 樹): The Bow Hero, he is one of the main characters of the Rising of the Shield Hero-verse. During his and the rest of the Four Cardinal Heroes' encounter against Biscas T. Balmus, a time portal would open above them, that would suck them, along with Biscas and the rest of their party members, throwing them into Kei's universe. During his time in Kei's world, his powers were eventually copied into the Yumi (弓) Hero Prism, which he would pass on to Alice, alongside the Yari and Ken Hero Prisms.
 * Raphtalia (ラフタリア): A Tanuki-type demi humn party member under the Shield Hero, Naofumi Iwatani, she is one of the main characters of the Rising of the Shield Hero-verse. During Naofumi and the rest of the Four Cardinal Heroes' encounter against Biscas T. Balmus, a time portal would open above them, that would suck them, along with Biscas and the rest of their party members, throwing them into Kei's universe. During her time in Kei's world, her powers were mysteriously copied into the Katana (刀) Hero Prism, foreshadowing her future title as the Katana Hero, which she would pass to Kei with the Tate Hero Prism.
 * Filo (フィーロ): A Filolial-type party member under the Shield Hero, Naofumi Iwatani, she is one of the main characters of the Rising of the Shield Hero-verse. During Naofumi and the rest of the Four Cardinal Heroes' encounter against Biscas T. Balmus, a time portal would open above them, that would suck them, along with Biscas and the rest of their party members, throwing them into Kei's universe. During her time in Kei's world, she would fight alongside the heroes and heroines, without a Hero Prism forming due to her not being any form of the Legendary/Vassal Heroes.
 * Melty Q Melromarc (メルティ＝Q＝メルロマルク): The heir to the Melromarc throne, and an unofficial party member under the Shield Hero, Naofumi Iwatani, she is one of the main characters of the Rising of the Shield Hero-verse. During Naofumi and the rest of the Four Cardinal Heroes' encounter against Biscas T. Balmus, a time portal would open above them, that would suck them, along with Biscas and the rest of their party members, throwing them into Kei's universe. During her time in Kei's world, she would fight alongside the heroes and heroines, without a Hero Prism forming due to her not being any form of the Legendary/Vassal Heroes.
 * Fitoria (フィトリア): The current Queen of the Filolials, she is one of the side characters of the Rising of the Shield Hero-verse. During Naofumi and the rest of the Four Cardinal Heroes' encounter against Biscas T. Balmus, a time portal would open above them, that would suck them, along with Biscas and the rest of their party members, throwing them into Kei's universe. During her time in Kei's world, she would fight alongside the heroes and heroines, without a Hero Prism forming due to her not being any form of the Legendary/Vassal Heroes.

Corpse Party-verse

 * Ayumi Shinozaki (篠崎 あゆみ):
 * Naomi Nakashima (中嶋 直美):
 * Seiko Shinohara (篠原 世以子):
 * Mayu Suzumoto (鈴本 繭):
 * Yuka Mochida (持田 由香):
 * Satoshi Mochida (持田 哲志):
 * Yoshiki Kishinuma (岸沼 良樹):
 * Sakutaro Morishige (森繁 朔太郎):
 * Yui Shishido (宍戸 結衣):

Generals

 * Tainted Crimson Mutant (テインテッド・クリムゾン・ミュータント): A general-level mutant created using the world-DNA of the possessed Ryūko Matoi from when she forcefully donned the Kamui-Junketsu after being brainwashed by Nui Harime and Ragyō Kiryūin, which powers itself using the Life Fibres. Its full name is the Tainted Uniform of the Crimson Heart (クリムゾンハートの汚れた制服).
 * Demonic Omnisilk Mutant (デモニック・オムニシルク・ミュータント): A general-level mutant created using the world-DNA of Ragyō Kiryūin, spliced together with the world-DNA of Shinra-Kōketsu, which powers itself using the Primordial Life Fibre. Its full name is the Queen's Throne of the Devil's Palace (悪魔の宮殿の女王の玉座).

Mutants

 * Crimson Blood Mutant (クリムゾン・ブラッド・ミュータント): A mook-level mutant created using the world-DNA of Ryūko Matoi from her final duel against Ragyō Kiryūin, which powers itself using the Life Fibres. Its full name is the Lost Fibres of the Crimson Blade (クリムゾンブレードの失われた繊維).
 * White Devil Mutant (ホワイト・デビル・ミュータント): A mook-level mutant created using the world-DNA of Satsuki Kiryūin from her final duel against Ragyō Kiryūin, which powers itself using the Life Fibres. Its full name is the White Devil's Uniform of Bliss (白い悪魔の至福の制服).
 * Shackled Beast Mutant (シャックル・ビースト・ミュータント): A mook-level mutant created using the world-DNA of Ira Gamagōri, spliced together from his multiple forms of his Three-Star Goku Uniform, which powers itself using the Life Fibres. Its full name is the Chained Arms of the Shackled Demon (束縛された悪魔の腕).
 * Forbidden Blade Mutant (フォービデン・ブレード・ミュータント): A mook-level mutant created using the world-DNA of Uzu Sanageyama, spliced together from his multiple forms of his Three-Star Goku Uniform, which powers itself using the Life Fibres. Its full name is the Cursed Sword of the Demonic Blessing (悪魔の祝福の呪われた剣).
 * Cursed Symphonia Mutant (カースド・シンフォニアー・ミュータント): A mook-level mutant created using the world-DNA of Nonon Jakuzure, spliced together from her multiple forms of her Three-Star Goku Uniform, which powers itself using the Life Fibres. Its full name is the Everlasting Symphony of the Eternal Orchestra (永遠のオーケストラの交響曲).
 * All-Seeing Probe Mutant (オール・シーイングプローブ・ミュータント): A mook-level mutant created using the world-DNA of Hōka Inumuta, spliced together from his multiple forms of his Three-Star Goku Uniform, which powers itself using the Life Fibres. Its full name is the The Deep Probe into the Infinite Mind (無限の心への深い探究).
 * Crimson Greed Mutant (クリムゾン・グリッド・ミュータント): A mook-level mutant created using the world-DNA of Senketsu from Ryūko and Satsuki's final duel against Ragyō Kiryūin, which powers itself using the Life Fibres. Its full name is the Fibrous Greed of the Artificial Uniform (人工制服の繊維欲).
 * Forbidden White Mutant (フォービデン・フォービデン・ミュータント): A mook-level mutant created using the world-DNA of Junketsu from Ryūko and Satsuki's final duel against Ragyō Kiryūin, which powers itself using the Life Fibres. Its full name is the White Crown of the Queen's Outfit (女王の服の白い王冠).

Other-world Villains

 * Ragyō Kiryūin (鬼龍院 羅暁):
 * Nui Harime (針目縫):
 * Rei Hōōmaru (鳳凰丸 礼):
 * Shinra-Kōketsu (神羅纐纈):
 * Biscas T. Balmus (ビスカ＝T＝バルマス):
 * Malty S Melromarc (マルティ＝S＝メルロマルク):

Arsenal

 * Kamen Rider Infiniva (仮面ライダーインフィニバ)
 * Hourglass Driver (アワーグラス・ドライバ): Infiniva's main transformation device, originally created by I.W.A.E. to be used by Aozora Hanabi. However, during a surprise attack, Kei would be the first official user of the Hourglass Driver, using it to transform against the Crimson Blood Mutant.
 * Hourglass Starter (アワーグラス・スターター): The main transformation trinket, inserted into the Hourglass Driver's main slot. Through the Sand Slots (サンド・スロット) on each end of the Hourglass Starter, Infiniva can augment his powers using the Hero Prisms to boost his attacks and defense accordingly.
 * Hero Prisms (ヒーロー・プリズム): Secondary trinkets utilized by Infiniva, that can be inserted into the Sand Slots located on the Hourglass Starter to augment Infiniva's powers with the abilities of otherworldly heroes.


 * Kamen Rider Sunadokei (仮面ライダー砂時計)
 * Kamen Rider Tokei (仮面ライダー時計)
 * Kamen Rider Hidokei (仮面ライダー日時計)

Episodes

 * 1) The Phantom Hourglass (幻の砂時計)
 * 2) * Start of events leading up to the Kill la Kill tribute.
 * 3) The Tainted Blade (汚染された刃)
 * 4) * Second part of the Kill la Kill tribute.
 * 5) The Forbidden Fibers (禁断の繊維)
 * 6) * Third and final part of the Kill la Kill tribute.
 * 7) Shield of Wrath (怒りの盾)
 * 8) * Start of events leading up to the Rising of the Shield Hero tribute.
 * 9) Holy Demon's Judgement (聖魔の裁き)
 * 10) * Second part of the Rising of the Shield Hero tribute.
 * 11) The Divine Weapon (神の武器)
 * 12) * Third and final part of the Rising of the Shield Hero tribute.
 * 13) Valley of Death (死の谷)
 * 14) * Start of events leading up to the Corpse Party tribute.
 * 15) Corridor of Catastrophe (大惨事の回廊)
 * 16) * Second part of the Corpse Party tribute.
 * 17) Queen of Nightmares (悪夢の女王)
 * 18) * Third and final part of the Corpse Party tribute.

Movies

 * 1) Kamen Rider Generations: Heisei × Reiwa (仮面ライダージェネレーションズ: 平成 × 令和)
 * 2) * A five-part tribute to the Heisei and Reiwa eras, featuring cameos from all Riders.
 * 3) Hero Generations: Kamen Rider × Super Sentai (ヒーロージェネレーションズ: 仮面ライダー × スーパー戦隊)
 * 4) * A second five-part tribute to the Heisei and Reiwa eras, featuring cameos from all Riders and Sentai.

Kamen Riders

 * Kei Sunado (すなど・けい): Rihito Itagaki (板垣 李光人)
 * Ango Sunado (すなど・暗号): Sea Kumada (熊田 聖亜)
 * Mithra Kizari (キザリ・ミスラ): Tatsuki Ishikawa (石川 樹)
 * Alexis Takahashi (高橋・アレクシス): Fuku Suzuki (鈴木 福)

Infinite Worlds Association and Establishment

 * Aozora Hanabi (花火・青空): Ririka Kawashima (川島 鈴遥)
 * Ango Sunado (すなど・暗号): Sea Kumada (熊田 聖亜)
 * Ayase Chihara (千原・綾瀬): Hiyori Sakurada (桜田 ひより)
 * Kei Sunado (すなど・けい): Rihito Itagaki (板垣 李光人)
 * Ryujin Yanagi (柳・龍神): Seishiro Kato (加藤 清史郎)
 * Samuel Suzuki (鈴木・サミュエル): Shunsuke Michieda (道枝 駿佑)
 * Dancho Koma (駒・団長): Kirato Wakayama (若山 耀人)
 * Alexis Takahashi (高橋・アレクシス): Fuku Suzuki (鈴木 福)
 * Alice Éclaire (エクレア・アリス): Miyu Honda (本田 望結)
 * Ash Karyu (カリュ・アッシュ): Kanon Kasuga (春日 香音)
 * Dayangko Shabistari (シャビスタリ・ダヤンコ): Hikaru Takahashi (髙橋 ひかる)
 * Elizabeth Crys (クリス・エリザベス): Marin Honda (本田 真凜)
 * Hattari Watanabe (渡辺・ハッタリ): Shota Taguchi (田口 翔大)
 * Mithra Kizari (キザリ・ミスラ): Tatsuki Ishikawa (石川 樹)
 * Rose LeBlanc (ルブラン・ローズ): Seiran Kobayashi (小林 星蘭)

Kill la Kill-verse

 * Ryūko Matoi (纏 流子): Ami Koshimizu (小清水 亜美)
 * Satsuki Kiryūin (鬼龍院 皐月): Ryoka Yuzuki (柚木 涼香)
 * Ira Gamagōri (蟇郡 苛): Tetsu Inada (稲田 徹 Inada Tetsu)
 * Uzu Sanageyama (猿投山 渦): Nobuyuki Hiyama (檜山 修之)
 * Nonon Jakuzure (蛇崩 乃音): Mayumi Shintani (新谷 真弓)
 * Hōka Inumuta (犬牟田 宝火): Hiroyuki Yoshino (吉野 裕行)
 * Shirō Iori (伊織 糸郎): Yūji Ueda (うえだ ゆうじ)
 * Mitsuzō Soroi (揃 三蔵): Akio Nojima (野島 昭生)
 * Aikurō Mikisugi ((美木杉 愛九郎): Shin-ichiro Miki (三木 眞一郎)
 * Tsumugu Kinagase (黄長瀬 紬): Katsuyuki Konishi (小西 克幸)
 * Senketsu (鮮血): Toshihiko Seki (関 俊彦)
 * Mako Mankanshoku (満艦飾 マコ): Aya Suzaki (洲崎 綾)
 * Barazō Mankanshoku (満艦飾 薔薇蔵): Kenyu Horiuchi (堀内 賢雄)
 * Sukuyo Mankanshoku (満艦飾 好代): Yukari Fukui (福井 裕佳梨)
 * Matarō Mankanshoku (満艦飾 又郎): Ayumi Fujimura (藤村 歩) (via archive recordings)

Rising of the Shield Hero-verse

 * Naofumi Iwatani (岩谷 尚文): Kaito Ishikawa (石川 界人)
 * Motoyasu Kitamura (北村 元康): Makoto Takahashi (高橋 信)
 * Ren Amaki (天木 錬): Yoshitsugu Matsuoka (松岡 禎丞)
 * Itsuki Kawasumi (川澄 樹): Yoshitaka Yamaya (山谷 祥生)
 * Raphtalia (ラフタリア): Asami Setō (瀬戸 麻沙美)
 * Filo (フィーロ): Rina Hidaka (日高 里菜)
 * Melty Q Melromarc (メルティ＝Q＝メルロマルク): Maaya Uchida (内田 真礼)
 * Fitoria (フィトリア): Sakura Tange (丹下 桜)

Corpse Party-verse

 * Ayumi Shinozaki (篠崎 あゆみ): Asami Imai (今井 麻美)
 * Naomi Nakashima (中嶋 直美): Rina Satō (佐藤 利奈)
 * Seiko Shinohara (篠原 世以子): Satomi Arai (新井 里美)
 * Mayu Suzumoto (鈴本 繭): Yūka Nanri (南里 侑香)
 * Yuka Mochida (持田 由香): Eri Kitamura (喜多村 英梨)
 * Satoshi Mochida (持田 哲志): Hiro Shimono (下野 紘)
 * Yoshiki Kishinuma (岸沼 良樹): Yuichi Nakamura (中村 悠一)
 * Sakutaro Morishige (森繁 朔太郎): Tetsuya Kakihara (柿原 徹也)
 * Yui Shishido (宍戸 結衣): Miyuki Sawashiro (沢城 みゆき)

Legend Riders

 * Yusuke Godai (五代 雄介): Joe Odagiri (オダギリ ジョー)
 * Shouichi Tsugami (津上 翔一): Toshiki Kashu (賀集 利樹)
 * Takahiro Omuro (尾室 隆弘): Akiyoshi Shibata (柴田 明良)
 * Makoto Hikawa (氷川 誠): Jun Kaname (要 潤)
 * Ryo Ashihara (葦原 涼): Yūsuke Tomoi (友井 雄亮)
 * Kaoru Kino (木野 薫): Takanori Kikuchi (菊池 隆則)
 * Shiro Mizuki (水城 史朗): Ryo Karato (唐渡 亮)
 * Shinji Kido (城戸 真司), Dark Shinji (鏡像の真司): Takamasa Suga (須賀 貴匡)
 * Ren Akiyama (秋山 蓮): Satoshi Matsuda (松田 悟志)
 * Masashi Sudo (須藤 雅史): Takeshi Kimura (木村 剛)
 * Goro Yura (由良 吾郎): Tomohisa Yuge (弓削 智久)
 * Miyuki Tezuka (手塚 海之): Hassei Takano (高野 八誠)
 * Jun Shibaura (芝浦 淳): Satoshi Ichijo (一條 俊)
 * Takeshi Asakura (浅倉 威): Takashi Hagino (萩野 崇)
 * Miho Kirishima (霧島 美穂): Natsuki Katō (加藤 夏希)
 * Itsuro Takamizawa (高見沢 逸郎): Arthur Kuroda (黒田 アーサー)
 * Satoru Tojo (東條 悟): Jun Takatsuki (高槻 純)
 * Mitsuru Sano (佐野 満): Takashi Hyuga (日向 崇)
 * Kamen Rider Odin (仮面ライダーオーディン): Tsuyoshi Koyama (小山 剛志)
 * Hajime Nakamura (仲村 創): Junichi Mizuno (水野 純一)
 * Hideyuki Kagawa (香川 英行): Satoshi Jinbo (神保 悟志)
 * Takumi Inui (乾 巧): Kento Handa (半田 健人)
 * Masato Kusaka (草加 雅人): Kohei Murakami (村上 幸平)
 * Shuji Mihara (三原 修二): Atsushi Harada (原田 篤)
 * Naoya Kaido (海堂 直也): Mitsuru Karahashi (唐橋 充)
 * Leo (レオ): Peter Ho (ピーター・ホー)
 * Yuji Kiba (木場 勇治): Masayuki Izumi (泉 政行)
 * Kazuma Kenzaki (剣崎 一真): Takayuki Tsubaki (椿 隆之)
 * Sakuya Tachibana (橘 朔也): Kousei (Hironari) Amano (天野 浩成)
 * Hajime Aikawa (相川 始): Ryōji Morimoto (森本 亮治)
 * Mutsuki Kamijo (上城 睦月): Takahiro Hōjō (北条 隆博)
 * Junichi Shimura (志村 純一): Yuuki Kuroda (黒田 勇樹)
 * Natsumi Miwa (三輪 夏美): Yoko Mitsuya (三津谷 葉子)
 * Shin Magaki (禍木 慎): Takao Sugiura (杉浦 太雄)
 * Hitoshi Hidaka (日高 仁志): Shigeki Hosokawa (細川 茂樹)
 * Iori Izumi (和泉 伊織): Joji Shibue (渋江 譲二)
 * Tomizo Todayama (戸田山 登巳蔵): Shingo Kawaguchi (川口 真五)
 * Zaomaru Zaitsuhara (財津原 蔵王丸), Touki (凍鬼): Kenji Matsuda (松田 賢二)
 * Daisuke Danda (段田 大輔): Makoto Ito (伊藤 慎)
 * Sakae Saeki (佐伯 栄): Katsumi Shiono (塩野 勝美)
 * Eiki (鋭鬼): Kazuya Nakai (中井 和哉)
 * Shuki (朱鬼): Reiko Kataoka (片岡 礼子)
 * Akira Amami (天美 あきら): Nana Akiyama (秋山 奈々)
 * Kyosuke Kiriya (桐矢 京介): Yuichi Nakamura (中村 優一)
 * Kabuki (歌舞鬼): Toshinobu Matsuo (松尾 敏伸)
 * Kirameki (煌鬼): So Yamanaka (山中 聡)
 * Nishiki (西鬼): Masaki Kitahara (北原 雅樹)
 * Habataki (羽撃鬼): Takeyuki Yue (湯江 健幸)

Suit Actors

 * Kamen Rider Infiniva (仮面ライダーインフィニバ): Kanzaki Hajime (神前 元)