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This is a partial character sheet for Kamen Rider Ryuki. Visit here for the main character index. Subjective trope and audience reactions should go on the YMMV page.

Warning: this Characters page contains unmarked spoilers. Unless noted, this page deals with the TV Series continuity, not the Episode Final or 13 Riders continuities.

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The Kanzakis

    Yui Kanzaki 

Yui Kanzaki

Portrayed by: Ayano Sugiyama

"Oniichan."
https://static.tvtropes.org/pmwiki/pub/images/yui_kanzaki.png

As a young girl, Yui Kanzaki was cursed with the power to see the Mirror World and its monstrous residents; an ability which made her the victim of merciless taunts by skeptical schoolmates. Added to that an abusive family-life and it was little wonder that Yui gravitated so closely to her brother, Shiro. Together, they formed the foundations of the Mirror World, creating the Mirror Monsters to act as their guardians but then...Yui died.

Unable to accept her death, Shiro made a deal with Yui's Mirror World self to resurrect her, although she would disappear forever on the day of her 20th birthday. The resulting breach in realities as the Mirror World-Yui merged with the real Yui caused a fire in the Kanzaki mansion, killing both their parents. Yui was adopted by her grandmother Sanako while Shiro was taken in by a different set of relatives and sent to America.

For years, Yui lived ignorant of her death and would likely have remained so if not for the Rider War. Refusing to believe that her brother would be so cruel as to set twelve individuals against each other, she begged for answers from her now estranged brother. Eventually, realizing the truth as her body slowly began to crumble away, Yui made a final desperate plea for Shiro to stop the Rider War.

She would succeed, as on the verge of allowing Kamen Rider Odin to become the final Rider, Shiro finally had a change of heart and destroyed his own minion. Shiro then reversed time and allowed himself to die alongside Yui, entering the Mirror World with her alongside their Mirror World selves to live the rest of eternity in peace.

Tropes that apply to her

  • All-Loving Heroine: Just like Shinji, she doesn't want anyone to die because of the Rider War or Mirror Monsters and tries to convince her brother to stop everything.
  • Apocalypse Maiden - Professor Kagawa believes that Yui is the key to the Mirror World, and that killing her will make it all go away. He is in fact wrong, as seen when she dies in both the series and in The Movie and the Mirror World and all its monsters continue existing.
  • Bifauxnen: She's very pretty, but has Boyish Short Hair and usually wears androgynous, figure-concealing clothes.
  • Dangerous 16th Birthday: She will die when she becomes 20 years old, because the contract Shiro made with her Mirror World counterpart to live longer will then expire.
  • Driven to Suicide: In The Movie's ending, she kills herself. Her brother doesn't take this well...
  • The Load: She really can't help the others that much due to not being a rider herself and the fact the battles happen in the Mirror World does not help much at all. However in a way this is subverted since in the end she is able to convince her brother to truly end the Rider War by letting him realize that in the end he just creates a cycle of suffering which makes her unable to accept a new life even if he wins.
  • Tomato in the Mirror: Literatary as well, she actually is the Yui from the Mirror World while the real Yui died.

    Shiro Kanzaki 

Shiro Kanzaki

Portrayed by: Kenzaburo Kikuchi

"Fight."
https://static.tvtropes.org/pmwiki/pub/images/shiro_kanzaki.png

The Big Bad and mastermind behind the Rider War. Kanzaki is the creator of the Advent Decks, chooses who to give them to and subconsciously encourages the wielders to fight. He is a psuedo-being of the Mirror World, living in the Mirror World and able to travel through reflections but unable to tangibly interact with the real world in the way that Mirror Monsters can. He can also control the Mirror Monsters, sending them to fight specific Riders and provoking conflict. He promises to offer power great enough to grant a single wish to the last remaining Rider: this is a half-truth, as his plan is to have Odin kill the last Rider and take the power for himself.

For the majority of the series, Kanzaki's motives are wrapped in mystery. But despite his inhuman demeanour and powers, his motives are far too human: to save the life of his sister Yui. For it was his decision as a child- an all-too-human decision- that led to the Mirror World Yui replacing the life of his dead sister; a decision he made because he could not stand to lose the one thing in his life that brought him hope. And when he was forcefully separated from her, taken to America by relatives, he screamed and pleaded not to go.

From that point on he dedicated his existence to finding a way to save her. He studied the Mirror World, discovering how to harness its power and extend Yui's life. He even discovered how to use it to manipulative time itself, and became a being of the Mirror World.

But Kanzaki couldn't get the outcome he wanted. After every failure, he would rewind time and do things differently, making small changes in the hope that it would edge him closer to his desired outcome. But no matter how many times he ran the Rider War, no matter how many advantages he gave himself or how many changes he made, he could never do it. And there were some things that he couldn't change at all: Shinji always became a Rider, and would always be an unwanted presence in Kanzaki's plan. And Yui, upon finding out the purpose of the Rider War, would always reject the new life he had worked so hard to give her.

It is unknown how many times Kanzaki rewound time, changed history and ran the Rider War. But distortions were beginning to appear in time itself. For example, there were records showing that Kanzaki had died in America at the same time he was studying in Japan. In the end, he finally accepts the bitter truth: that Yui would never accept the new life, that all his efforts were misguided. So once again he rewinds time to the moment of Yui's death, but this time he enters the Mirror World to be alongside her Mirror World self forever. Yui is never reborn, the Mirror World remains closed, and the Rider War never occurs in the first place.

Tropes that apply to him

  • Badass Baritone: His voice sounds really deep especially thanks to the echo effect. He's certifies the badass part thanks to being the master of Kamen Rider Odin and being the ruler of the mirror World.
  • Badass Longcoat: He always wears a longcoat.
  • Being Evil Sucks: Even though he's an Invincible Villain, by the end of the series we see he isn't any better off than his victims. What he wants is something that will always be out of his reach.
  • Berserk Button: Threatening Yui.
  • Big Bad: The mastermind behind the Rider War.
  • The Chessmaster: He's the one who orchestrated the Rider War.
  • Deal with the Devil: His M.O. towards his chosen Riders in order to further his own motives.
  • Evil Sounds Deep: While the evil part can be argued, his voice always sounds deep along with the echo effect it has. He loses this when Yui neared death in the last timeline to show he's really breaking down.
  • Evil Will Fail: Even though his enemies have no chance of beating him, his goals are just as out of reach as theirs.
  • Freak Out: After Yui kills herself in The Movie, Shiro has a freakout so huge, it breaks the barriers between the real world and the Mirror World, shattering glass for seemingly miles around.
  • Invincible Villain: Even though the Rider War doesn't go entirely the way he wants it to, there is NOTHING that any of the riders can do against him. He's a ghost, so they can't attack him, he controls the single most powerful Rider, so should they even try they're almost certainly going to fail. If Odin does die, Kanzaki can just find a new person to replace him. If something doesn't go his way, he can just have Odin rewind time. Top it all off, he can actually strip Riders of their powers if he really wants to. It isn't until the finale where it's even hinted that things won't go the way he planned them.
  • Knight Templar Big Brother: He tries to save his sister Yui from her impending death by any means.
  • Love Makes You Evil: The love he has for his sister caused him to create the Rider War and as a result also the threat of Mirror Monsters who attack civilians.
  • Manipulative Bastard: During the last half of the series he convinces Shinji to fight in the war so that he can save Yui.
  • Morality Pet: Deconstructed. Yui is the only thing that has any meaning in Shiro's life, so he's willing to sacrifice anything and everything for her.
  • Non-Action Big Bad: Since he has no physical body after he became a Mirror World being, he relies on sending Mirror Monsters, other Riders and Odin to do his dirty work.
  • Not So Stoic: Towards the finale, leading up to his Villainous Breakdown.
  • Our Ghosts Are Different: He's not technically alive, doesn't really have his own body and it can be said he's a ghost living in the mirror.
  • Reality Warper: Not only did he and Yui somehow create the Mirror World and gain the power to control Mirror Monsters and grant any wish, he created the Advent Decks, and one of those cards can even go back in time.
  • Reset Button: Time Vent, via Odin, which resets the whole Rider War. He's willing to use this for many reasons, ranging from Yui dying to a vase of water accidentally spilling and ruining one of Yui's childhood paintings.
  • Stealth Hi/Bye: Constantly doing this. He'll appear, briefly speak to a Rider, and leave without a trace.
  • The Stoic: He never loses his cool whenever he talks to the riders. He only loses it when something happens to Yui.
  • The Unfettered: He's willing to do anything to save Yui which include creating the Rider War and causing many civilians deaths by opening the Mirror World.
  • Villainous Breakdown - Fantastically achieved in the last two episodes when Yui dies. When his voice loses the echo effect it almost always has, you know he's reached his breaking point.
  • Yandere: A very extreme one. He ignores most of Yui's pleas to stop the Rider War, justifying his actions saying she doesn't understand the pain they both went through as a result of her death, and he's not entirely making that up. But even when she opposes him, it still takes him time to come to his senses. By time, we mean several Rider Wars, spanning a period of several years worth of alternate timelines.
  • Well-Intentioned Extremist: Very extreme, he lets the Mirror Monsters run wild and kill innocent people by the masses and manipulate the lives of everybody involved in the Rider War, but all to save his little sister.

    Sanako Kanzaki 

Sanako Kanzaki

Portrayed by: Kazue Tsunogae

https://static.tvtropes.org/pmwiki/pub/images/sanako_kanzaki.png

Yui's aunt and owns the coffee shop Atori which is the home of theirs as well as Shinji and Ren.

  • Butt-Monkey: Due to her niece as well Shinji and Ren running out during working hours at times, Sanako often exasperates with having to do all the work all by herself. Having Tezuka and later Tojo as temporary helpers relieve her a bit before their respective departures.
  • Catchphrase: "My intuition is never wrong."
  • The Dog Bites Back: After yet another instance of having to do all the work by herself, especially on a huge lunch rush, Sanako decided to give up, bewildering Shinji, Ren, and Yui. They eventually decided to make it up to her by agreeing to help out on the lunch rush, right after she uses her complaining to manipulate them into being more hardworking.
  • Ungrateful Bitch: Zigzagged: Due to being unable to pay for the office, Okubo stayed at Atori as a temporary office and was willing to help out even if it meant bein a literal Extreme Doormat to Sanako. Once Reiko then showed him info about the incident with Yui, Sanako, out of her sake to protect Yui's past, aggressively kicked them out of the cafe, even after all that Okubo was willing to do for her.

    Kanzaki parents 
  • Abusive Parents: Locked up Yui and Shiro in the attic for extended periods of time and were neglectful to notice that Yui got sick and died.
  • The Ghost: Their faces aren't fully shown as one was pulling Shiro away from Yui.
  • Unwitting Instigator of Doom: Nice job making Shiro start the Rider War, you two.
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ORE Journal

    Daisuke Okubo 

Daisuke Okubo

Portrayed by: Kanji Tsuda

https://static.tvtropes.org/pmwiki/pub/images/daisuke_okubo.png

The editor-in-chief of the online newspaper ORE Journal, and Shinji's boss.

Tropes that apply to him

  • Da Editor: He's pretty much your archetypal boss of a newspaper, down to the attire and his protectiveness of his workers (sans the cigar).
  • Locked Out of the Loop: For most of the series; it is only at the very end that he finally learns of Shinji being a Kamen Rider, as well as the Rider War, even writing a soliloquy on it.
  • Plucky Comic Relief: Is an utter goofball in contrast to the more series main story.
  • Shoo Out the Clowns: By the finale, he actually learns about the Rider War, and his comedic moments stop before having one last message prior to the timeline reset.

    Reiko Momoi 

Reiko Momoi

Portrayed by: Sayaka Kuon

https://static.tvtropes.org/pmwiki/pub/images/reiko_momoi.png

A reporter for ORE Journal, and Shinji's co-worker.

Tropes that apply to her

  • Cool Big Sis: Social example: Reiko may be very flustered with Shinji sometimes, especially early on, but is shown to very much care about him. Case in point, after Shibaura told Shinji that he sucked, Reiko was prepared to beat the former as Okubo restrained her.
  • Intrepid Reporter: She's so determined to find out the source of the disappearances, she inspires Shinji to become a Kamen Rider.
    • Starting when Asakura kills his brother with his Monster almost in front of her, she spends the rest of the series figuring out the Masquerade.
  • Locked Out of the Loop: Until episode 47, she wasn't aware of Shinji being a Kamen Rider.
  • Only Sane Man: Among the rest of the ORE journal's employees.
  • Tsundere: Often shoos down at Kitaoka's affections towards her, having reluctance whenever she needs his help on ocassions, though by the end, she slighty warms up to him to the point of making a date with him.

    Nanako Shimada 

Nanako Shimada

Portrayed by: Hitomi Kurihara

https://static.tvtropes.org/pmwiki/pub/images/nanako_shimada.png

The system technician for ORE Journal, she updates and maintains the actual website.

Tropes that apply to her

    Megumi Asano 

Megumi Asano

Portrayed by: Chisato Morishita

https://static.tvtropes.org/pmwiki/pub/images/megumi_asano.png

Kitaoka's secretary before Goro. After her debut, she becomes a journalist for ORE Journal.

Tropes that apply to her

  • The Ditz: Her carelessness was why Kitaoka fired her. Heck, it's why she was a secretary in the first place; she wanted to be a journalist, but took the wrong class.
  • Multiple-Choice Past: Of sorts; the backstory of her and Kitaoka dating and him proposing marriage to her, only to him to dump her is generally consistent. It's the location of the proposal and the way he proposed to her that keep changing with each retelling.
  • Ninja Maid: In her debut episode, she single-handedly defeats five gangsters.
  • Unreliable Narrator: She makes herself out to be the victim of an unjust firing, when she herself was responsible for most of it.
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Alternatives

    Hideyuki Kagawa/Alternative Zero 

Hideyuki Kagawa/Alternative Zero

Portrayed by: Satoshi Jinbo (live), Yoshifumi Oshikawa (suit)

"To sacrifice one life in order to save ten: that is the meaning of a true hero."
https://static.tvtropes.org/pmwiki/pub/images/hideyuki_kagawa.png
https://static.tvtropes.org/pmwiki/pub/images/alternative_0.png

Once a mentor to Shiro Kanzaki, Kagawa accidentally glimpsed notes made by his student concerning the Mirror World and due to his Photographic Memory, was able to recall every detail of Kanzaki's plans. When his student, Satoru Tojo became Kamen Rider Tiger, Kagawa enlisted the young man and one of Kanzaki's former colleagues, Hajime Nakamura, to close the Mirror World, on the pretense that it was the heroic thing to do. Living by the mantra 'One Life To Save Ten', Kagawa attempted to assassinate Yui to render Kanzaki's plans redundant but would find the likes of Shinji and Ren a constant thorn in his side.

Eventually, when at a hair's breadth away from fulfilling his mission, Kagawa was betrayed and killed by Tojo, his body dissolving from the arms of his treacherous student.

Tropes that apply to him

  • Blessed with Suck: Possibly more so than anyone. If not for his Photographic Memory, he would have never known about the Rider war. He even stated himself that it causes him problems. He was right.
  • Cool Sword: Slash Dagger.
  • Evil Counterpart: Alternative's visor speaks with a female voice instead of a male one, its belt spins vertically instead of horizontally when it appears, and its Advent Cards are swiped across the visor instead of being inserted into them. Alternative's Advent Cards are also laid out lengthwise (name on the right, image in center, stats on left) instead of the regular heightwise (name on top, image in center, stats on bottom).
  • Death by Irony: Talks a big game about sacrificing others for the greater good, only to be killed by someone who bought what he was selling and saw him as a threat to the greater good.
  • Finishing Move: Dead End note 
  • Hero Antagonist: He is genuinely good person trying to stop a terrible event that over the course of the series claims dozens of innocent lives, it's just that his willing to take more extreme measures to do so.
  • Hoist by His Own Petard: His teachings of "sacrifice one life for ten" to Tojo ultimately results in the latter killing him.
  • Horrible Judge of Character: Kept Tojo around even after the latter killed one of their allies. Although he may not have had much of a choice in the matter.
  • Hostage for MacGuffin: Kanzaki pulls this on him, threatening to set a Mirror Monster on his family unless he gives up the Alternative deck. He refuses.
  • The Needs of the Many: An avid believer.
  • Photographic Memory: He says whenever he looks at something, it sticks in his head. He took one short look at Kanzaki's file, and remembered enough to create fake Advent Decks and hypotheses to seal the Mirror World.
  • Reasonable Authority Figure: He's the leader of the three Riders fighting to seal the Mirror World. For all his unfettered tendencies, he is willing to reveal their secrets to those he thinks they can trust, and is the most altruistic of the three, unwilling to kill unless necessary and having no ulterior motives for sealing the Mirror World.
    • In fact, despite not agreeing with Shinji, he genuinely doesn't dislike him, especially after Shinji saves his own family. Kagawa tries to use them as an object lesson as to why his student should stop going around killing for no reason, but it doesn't stick.
  • Super Speed: Accel Vent
  • The Unfettered: He's willing to dirty his hands and even sacrifice his own family to stop the Rider War. However, he draws the line at needlessly killing people, something which his student unfortunately had a penchant for doing.
  • Well-Intentioned Extremist: He's willing to kill Yui to end the Rider War. And is even willing to sacrifice his family, even though it grieved him to do so. Unlike his student, he is entirely aware that killing people is wrong, and that taking human lives is a burden you'll have on your head for the rest of your life.
  • Wrong Genre Savvy: His assumption that Yui is the key to ending the Rider War. He's right, but because she's the only one that can convince Kanzaki to stop it, her death will do nothing.

    Hajime Nakamura/Alternative 

Hajime Nakamura/Alternative

Portrayed by: Junichi Mizuno (live), Yoshifumi Oshikawa (suit)

https://static.tvtropes.org/pmwiki/pub/images/hajime_nakamura.png
https://static.tvtropes.org/pmwiki/pub/images/alternative.png

A former colleague of Shiro Kanzaki at the Ejima Lab. He was away when Kanzaki conducted his experiments, thus he became the only survivor from the lab's staff. Although Yui and Reiko each ask him about his involvement, he vehemently refuses to answer them. Later, he is discovered to have teamed up with Hideyuki Kagawa and Satoru Tojo, seeking to close Mirror World by killing Yui. After Shinji thwarts his attempts, he is ambushed by Tojo, showing that the latter would not be afraid to betray his allies to fulfill his twisted morals.

Tropes that apply to him

Other Civilians

    Goro Yura 

Goro Yura

Portrayed by: Tomohisa Yuge

"You... have a good whistle."
https://static.tvtropes.org/pmwiki/pub/images/goro_yura.png

Goro is the manservant of Shuichi Kitaoka, and utterly devoted to the man. He's a talented cook and martial artist, and for a brief moment it was hinted that he was Zolda. He also has an odd habit of whistling, and admires anyone who has an equally good whistle. Goro knows about Kitaoka's double-life as Zolda, and it causes him great pain to think that his master is fighting for his life every time he transforms.

Goro's dedication to Kitaoka came from a sense of guilt: Kitaoka had defended Goro in court against a false charge instead of attending a medical examination that could have detected his disease earlier and saved his life. Kitaoka holds no grudge against Goro, but the young man feels beholden to Kitaoka. At one point, Goro nearly murders Asakura to protect his master. But Kitaoka stops him, knowing that the act would have shattered Goro emotionally and gently telling him that it was not his duty to fight his battles for him.

Sadly, it was the very act of fighting one of Kitaoka's battles for him that led to Goro's death. Having refined his abilities to the level of a master chef, Goro could have left and lived his own life. But instead, with Kitaoka determined to finish things with Asakura but unable to because of his rapidly failing health, Goro takes the Zolda Deck and goes in his place. The Mirror World is where Goro meets his end.

Tropes that apply to him

  • Badass Normal: So much so that Shinji initially assumes he's Zolda.
  • Battle Butler: He works as Kitaoka's butler and defends his boss from thugs who want revenge on him.
  • Beware the Nice Ones: Combined with Beware the Quiet Ones. He once tried to kill Asakura by running him over with a car and only failed due to Kitaoka stopping him for the sake of his own mental health.
  • Death by Irony: He pretended to be Zolda and faked his death in an attempt to drive Shinji out of the Rider War. He would die after he took the Zolda mantle for real following Kitaoka's death.
  • Face of a Thug: He looks rather threatening, rarely emotes that much and more or less looks like thug, but is one of the nicest guys of this series.
  • Friend to All Children: Unlike his master, Goro is nice to children, even giving them candy.
  • Hypercompetent Sidekick: He's Kitaoka's personal butler, secretary, bodyguard, photographer, driver, cook, errand boy, and his best friend.
  • I Owe You My Life: Kitaoka saved him from going to jail so now he's going to serve him forever.
  • Identity Impersonator: Pretended to be Zolda under the orders of Kitaoka to give Shinja an Heroic BSoD to get him to retire from the Rider War.
  • It's All My Fault: He blames himself for Kitaoka's disease (and probably for his subsequent involvement in the Rider War) because Kitaoka defended him in a case of petty assault rather than having a medical checkup that could have detected his disease earlier and saved his life.
  • Morality Pet: He brings out the best in Kitaoka, although it's only around him as gratitude for his services.
  • Odd Friendship: With Shinji after some awkward Pet the Dog moments.
  • Pet the Dog: Gives a girl candy when Kitaoka refuses to help her and politely praises Shinji on his Gyoza recipe before timidly asking for it, which cements his friendship with him.
  • The Quiet One: He rarely talks to anyone aside from Kitaoka and even then he only says a few words.
  • Supreme Chef: Personally cooks for Kitaoka, who constantly praises the quality of his meals. Asakura also takes delight in eating any dish that Goro cooks every time that he ransacks Kitaoka's house in his attempts to fight him.
  • Undying Loyalty: To Kitaoka for defending him at a trial at the cost of a medical checkup that may have saved his life. When his master finally died, he even took up the mantel as Zolda and fought Asakura in his place.
  • Unknown Rival: To Asakura, whose first attempt to kill Kitaoka he thwarted since the former was still not used to using his Rider powers. Afterwards, Asakura is quite dismissive of Goro, pretty much ignoring him or using his Mirror Monster to capture him while Goro assumes a fighting stance or tries to run him over with his car. Taken Up to Eleven in the last episode, where he takes up Kitaoka's identity as Zolda to fight Asakura in his master's place. This time around, Asakura takes him seriously and Goro finally gets to lay the hurt on the man that has been trying to hurt his master throughout the series. Despite giving Asakura a good fight, Goro dies and Asakura is Driven to Suicide out of sheer dissatisfaction, showing that he did not think much of Goro despite the challenging fight if that didn't mean killing Kitaoka.

    Eri Ogawa 

Eri Ogawa

Portrayed by: Mahiru Tsubara

https://static.tvtropes.org/pmwiki/pub/images/eri_ogawa.png

Ren's fiancee who ended up in a coma due to Darkwing, thus becoming Ren's reason for joining the Rider War.

    Koichi Sakakibara ( 13 Riders) 

Koichi Sakakibara

Portrayed by: Keiichi Wada

https://static.tvtropes.org/pmwiki/pub/images/koichi_sakakibara.png

The previous user of Kamen Rider Ryuki before it got passed on to Shinji.

  • Posthumous Character: As the guy that Shinji was searching for in 401, he was implied to be eaten before the start of the series.
  • We Hardly Knew Ye: Was only seen getting killed and doesn't get much screentime beyond giving Shinji the Ryuki deck.

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