History Characters / KamenRiderDenO

* IdenticalAncestor: Subverted that though Yu's mother's face was never seen, Yu said to Toki that they look alike.

* TheStinger: [[spoiler:Yu is revealed at the end as a younger Yuto Sakurai through a MeaningfulEcho of what Yu said earlier.

* BreakTheHaughty: Momotaros has a talk with Kotaro that makes him more understanding of his supposedly "weak" grandfather.

An Imagin based off of ''Frosty the Snowman''.

An Imagin based on ''Death's Messenger''.

%%* BigBrotherMentor

** CatchphraseSpoutingDuo: Sometimes gives the tail-ends of Yuto's phrases.

* FauxAffablyEvil: [[spoiler:His manner of speech and actions are normally relatively unvillainous, which serves to make him far more creepy as a result. Note, he keeps this even when letting loose an entire army of Imagin on the city and preparing to open a time rift to ''erase an entire area and everyone in it from time''.]]

* WellIntentionedExtremist: [[spoiler:He's doing all of this for the sake of the Imagins' existence.]]

Another Imagin based on ''The Man Who Found a Gold Lion'', this one a stronger white version.

* LiteralGenie: The Armadillo Imagin interprets its victim's wish to "cut ties" with the {{Yakuza}} literally - it walks up to his bosses, cuts their '''neck'''ties in half, and says "Contract fulfilled!"

Another Imagin based off of ''The Octopus and The Skull''.

%%* TheHeart

* ThisLoserIsYou: Has elements of it, but gets better.

%%* BigGood: Technically.

%%* TheBigGuy

---

An Imagin based off of ''The Octopus and The Skull''.

* NiceHat: Has the appearance of one.

A troop of Imagin based off of ''Thumbelina''.

* IdenticalTwinIDTag: Their weapons serve as this.

An Imagin based off of ''The Man Who Found a Gold Lion''.

A pair of Imagin based off of ''The Snail and the Rose Tree'', one male and one female.

* GangOfHats: his Imagin followers are all reptilian.

* BreakTheCutie: Near the end of the series, Ryutaros gets confronted by Kai who [[spoiler: nearly made Ryutaros destroy [=DenLiner=], and at the same time, lose interest in Airi after she knew Ryutaros wasn't her brother. Made all the worse because Ryutaros was trying to give Airi a picture he made of her and couldn't. Poor guy.]]

An arrogant swan Imagin, inspired by the story of ''Theatre/SwanLake'' and it's male protagoist, Prince Siegfried in specific. He possessed a rich heiress, but because she was pregnant at the time, the contract passed to her unborn son. Sieg first came into being following the child's birth, referring to mother and child as his family. He was brought to the [=DenLiner=] crew's attention when Ryutaros brought him onto the train. His arrogant demeanor rubbed everyone the wrong way until Hana punched some sense into him, at which point he began calling her "Princess" and started gradually referring to the others as family rather than servants. He allows Den-O to assume the exceptionally powerful Wing Form, but because his contract was formed with a child, whose memory isn't as strong as an adult's, he begins "fading". Ryotaro discovers a "loophole" in that Sieg's contract with the heiress was still active, allowing him to travel to the past and exist peacefully; despite this development, he shows up in critical moments such as the series finale and the movies.

* DemonicPossession: Though hardly unique to him, as an Imagin, Sieg's possessions are exceptionally powerful. Whether it's from his being born in the present or by sheer force of will, Sieg is near ''impossible'' to remove from Ryotaro once he has possessed him. Even when the other Taros are unable to possess Ryotaro due to amnesia, Sieg was able to do it just fine.

An pair of Imagin brothers who are both based off of ''Literature/TheGrasshopperAndTheAnts''. They make a contract with an unscrupulous loan shark seeking to marry Airi in order to obtain a physical form, but their true goal is to defeat Den-O directly.

An pair of Imagin brothers who are both based off of ''Literature/TheGrasshopperAndTheAnts''.

* CoolSword: Ari's sword resembles a shovel, whereas Kirigiris' sword is shaped like a viola. This functions as an IdenticalTwinIDTag.
* LaughingMad: Kirigiris cackles psychotically.

Another Imagin based off of ''Literature/TheTortoiseAndTheHare''.

* LizardPeople: His motif is that of a salamander.

* LizardPeople: His motif is that of a gecko.

* LizardPeople: His motif is that of a Newt.

!! Molech Imagin (voiced Hidenori Tokuyama)
* LizardFolk: He seems to be based on an actual spiked reptile, known as the moloch.

* ExactWords: The thief asked for the corpse to be disposed of for his wish. The "corpse" was already long gone from the area, but the Wasp Imagin made due with a fake "corpse". After disposing of that, he declares the contract complete.

An Imagin based off of ''The Blue Bird''.

An Imagin based off of ''The Wasp and the Snake''.

* PaletteSwap: A modified version of the Crust Imagin.

!!! Leo Imagin (voiced by)

!!! Snail Imagin (voiced by)

* CurbStompBattle: Because at the time Ryoutarou was keeping Momotaros out and didn't know how to fight for himself, the Chameleon easily kicks his ass when they battle in the past. This changes when Momotaros finally takes control.

%%* MonsterClown

%%* OurGhostsAreDifferent

%%* SlayingMantis

* WhiteBunny: It fits.

* FateWorseThanDeath: [[spoiler:When the Death Imagin is destroyed in the final battle, it takes his remaining memories with it. Despite being a Singularity Point, he'd destroyed so many of his past selves that he's completely erased from time due to this.]]

%%* SpiderPeople

* AnimalMotifs: [[OurDragonsAreDifferent Dragon]] (?)

The protagonist and eponymous Kamen Rider, Ryotaro is quite possibly [[CosmicPlaything the unluckiest being on Earth]] (and a high school drop-out supporting his only other family member, his older sister Airi); every day is [[TheChewToy a parade of misfortune for him]]. In the middle of an unusually bad day, he's possessed by a time-travelling monster called an Imagin, meets a strange girl who tells him he's a [[RippleEffectProofMemory Singularity Point]], and said girl and Imagin effectively "railroad" him into becoming Den-O. Even though by his own admission [[TheEveryman he's not exceptionally strong, smart, or brave]], when the chips are down his true strength appears in the form of [[{{Determinator}} unstoppable determination]]. In a way, his horrid luck could be seen as a [[CursedWithAwesome mixed blessing]], since he's been through so much that it takes a lot to really faze or hurt him. He's also [[TheHeart very good at reading people's emotions and true feelings]]; Ryotaro's ultimate strength may lie in his [[AllLovingHero unflappable kindness]]. [[spoiler:His strong feelings towards his friends are the reason for the existence of Den-O's first SuperMode Climax Form, while the Taros work together to create the second, Liner Form. As well, Ryotaro's bond with the Taros is the reason they continue to exist after the death of Kai.]] As the series went on, he started to develop self-confidence, assertion, strength, and bravery, eventually being able to show himself as an independent person and a worthy hero.

The mysterious young woman who drags Ryotaro into the battle with the Imagin, providing him with the Den-O Belt and [=DenLiner=]. Hana is the [[LastOfHisKind only survivor]] of a future timeline wiped out by the Imagin, saved only by the fact that she's a Singularity Point like Ryotaro. Because of this, she has a strong dedication to protecting the timeline and a fierce hatred for Imagin, a stance which gradually changes as she interacts with the Taros. She helps Ryotaro investigate the Imagin, and works to keep the Taros in line, usually berating (or [[DopeSlap Dope Punching]]) Momo for being violent or Ura for chasing skirt. As a new connection to Hana's destroyed time forms, she finds herself de-aged into a ten-year-old whom Ryotaro nicknames Kohana (literally "Little Hana") and tries to pass off as Hana's little sister to {{Muggles}}. [[spoiler:Late in the series it's revealed that Hana herself is the key to the future timeline as the Junction Point between present and future, as well as Yuto and Airi's daughter and thus Ryotaro's niece.]]

Ryotaro's older sister and the owner of the Milk Dipper library cafe. She was forced to help raise Ryotaro after the death of their parents and thus often seems wise beyond her years. She's also very close to Ryotaro, worrying about his well-being and trying to help out with health drinks and herbal concoctions. The beautiful Airi enjoys good business mostly thanks to the [[UnwantedHarem horde of lovestruck men]] who pack the shop from opening to closing. For her part, Airi remains [[ObliviousToLove completely oblivious]], her only passions seeming to be stargazing and brewing the perfect cup of coffee. One year prior to the series' start, Airi's fiance Yuto Sakurai vanished a month before the wedding; initially Ryotaro thought she hid her pain behind a smile, but to his great concern she seems to have completely forgotten about Sakurai, not even remembering why she has his beloved telescope in the shop (but still gazing at it fondly) and not realizing that the pocketwatch he gave her rests beneath it. [[spoiler:Late in the series, Ryotaro discovers that Airi is in fact perfectly aware of just about everything that's happened up to that point, including Ryotaro being Den-O, and in fact helped orchestrate the whole thing along with Sakurai in order to protect the Junction Point from the Imagin.]]

%%* ObliviousToLove

The teenaged version of Yuto Sakurai, as well as the warrior Kamen Rider Zeronos and the partner of the Imagin Deneb. Yuto initially appears after Ryotaro gets too close to Sakurai, warning the soft-hearted young man not to interfere, believing that protecting the timestream is different from protecting individuals, unlike Ryotaro. The brash, hot-tempered Yuto stands greatly at odds with Ryotaro's memories of a gentle, kindly, brotherly Yuto Sakurai, but according to the Owner, the two are indeed one and the same. He also acts childish at times, preferring his coffee overloaded with sugar, despising ''shiitake'', and enacting comedic violence upon Deneb whenever the Imagin annoys him. Contact with Ryotaro and the [=DenLiner=] crew tempers Yuto's harsh personality as well as maturing him. [[spoiler:Ryotaro (and the audience) eventually learn that the Zeronos powers operate by "burning" the memories people have for Sakurai, explaining why nobody except Ryotaro remembers him. After using up all the original Zeronos Cards, Sakurai offers him more, along with a new card that turns Altair Form into the SuperMode Zero Form, which is fueled by memories of Yuto rather than Sakurai. The disappearance of Sakurai at the end of the series leaves Yuto with a new future to discover, which he gladly undertakes alongside Deneb.]]

Airi's fiance and Ryotaro's future brother-in-law, Sakurai was a gentle, kind-hearted man with a passion for astronomy he shared with Airi. The two were very much in love, and Sakurai treated Ryotaro like the little brother he never had; thus, Ryotaro's surprise when Sakurai disappeared just before the wedding is understandable, as is his confusion at the fact that nobody seems to remember his existence. Several times in the early part of the series, a cloaked man appears watching Den-O's battles in the past and checking a pocketwatch; by accident, Ryotaro bumps into the man and recognizes him as Sakurai. He attempts to track down the man, only to be warned off by Yuto. [[spoiler:Eventually Ryotaro learns that Sakurai discovered the [=ZeroLiner=] and learned of the Imagin. In order to protect his and Airi's daughter, the Junction Point, Sakurai engineered his own disappearance before handing off the Zeronos Belt, [=ZeroLiner=], and his partner Deneb to his teenaged self, while he used himself as bait for the Imagin in the past. Late in the series, Sakurai appears and becomes Zeronos Altair Form, fighting alongside Ryotaro and Yuto in one battle. As Yuto uses the last of the Zeronos Cards, Sakurai vanishes from the timeline, though Airi remains confident that he'll return some day.]]

%%* ChekhovsGunman

Yuto Sakurai's Imagin partner, inspired by the legend of Benkei and allowing Yuto to transform Zeronos into Vega Form. Deneb is kind-hearted but somewhat on the thick side, his polite friendliness contrasting greatly with Yuto's loud, rude attitude. He often tries to better Yuto, encouraging him to be nicer or to work alongside Ryotaro as an ally rather than viewing the [=DenLiner=] team as a hindrance. Occasionally Deneb will even possess Yuto and run around being friendly, doing good deeds, and passing out Deneb Candy in order to win friends for the young man, but this invariably results in a beating from Yuto once he regains control. [[spoiler:Deneb is later revealed to be contracted to Sakurai, having joined the man after seeing his selfless battle against the Imagin, and their contract retroactively applying to Yuto as well. Since the Zeronos Cards erase peoples' memories of Yuto, Deneb tries to make friends for him in order to remove the burden of isolation. When Kai manages to kill Yuto in the past, this causes a timeline alteration that results in Deneb being contracted to Ryotaro, but this is eventually undone and things return to normal.]]

The series' MonsterOfTheWeek creatures, Imagin are time-traveling spirits from a destroyed alternate future, with the goal of changing the past to bring their future back into existence. Initially they manifest as golden balls of light, but upon possessing a human victim (in a burst of energy and sand) they take a form from that person's imagination, drawing upon their mental image of various stories, legends, or folk tales. Once possessing a victim, Imagin offer them a "wish", twisting that person's desires to destructive ends. Once the wish is granted (by whatever loose definition the Imagin is using), a portal opens to the past via a particularly strong memory of victim's. From there the Imagin goes back in time and runs rampant in an attempt to alter the timeline. Upon defeat, particularly poweful Imagin will [[OneWingedAngel revive as giant monsters]] called "Gigandeaths". [[spoiler:The Imagin initially seem independent of one another and unorganized, but the appearance of Kai reveals the truth. Urataros later explains to Ryotaro and Hana that all Imagin hear Kai's orders in their heads, but it's up to them whether they obey or not. Though Kai's death also destroys most of the Imagin, the Taros, Sieg, and Deneb hang on thanks to the bonds of friendship formed with Ryotaro and Yuto, while several antagonistic Imagin remain through unknown reasons and menace the crew in the various sequel movies).]]

* {{Tsundere}}: For the Imagin; she even cried when [[spoiler:Ura, Kin, and Ryu seemingly vanished]].

* AndThenWhat: He succeeds at getting to the past and evading Den O, but then, unusually for an imagin, he has no idea ''what'' he should attack and gets frustrated trying to pick something. Eventually he decides to destroy ''everything''.

* OneWingedAngel: The two Imagin each turn into giant monsters during the battle against Zeronos and Den O, one a behemoth and the other a winged creature.

* OneWingedAngel: The two Imagin