History Characters / KamenRiderBuildMovieExclusiveCharacters

!!Ryoka Saiga / Scissors Lost Smash

!!Mitsuomi Gobara / Zebra Lost Smash

!!Keiji Uraga / Kamen Rider Metal Build / [[spoiler:Kamen Rider Phantom Build]]

!!Yui Mabuchi

Evolto's race and the main antagonists of TV series, ''Be the One'' summer movie and ''Build NEW WORLD: Kamen Rider Cross-Z'' V-Cinema. Originally from Planet Blood, its higher echelons escaped after their leader destroyed their home planet. Not much known about their early history, apart from being [[ObviouslyEvil obviously]] AlwaysChaoticEvil aliens who devoured countless of planets across the universe.

* EnemyCivilWar: While they're all OmnicidalManiac, they differ in how they want to go about it, resulting in them coming into conflict with one another. Evolt wants to draw out destroying planets for his own amusement, Blood and his faction desires to destroy Earth [[PragmaticVillainy as quickly as possible so they can move on to the next one]], and whereas the other members want to survive the destruction of everything, Killbus wants to destroy ''literally'' everything, himself and the rest of the Blood Tribe included. The latter is why Evolto and the rest of the Tribe stole Pandora Box and headed off on their own.

The new governor of Touto following the reunification of Japan. In truth, Kengo is a member of Evolto’s species, the Blood Tribe, and arrived with two others of his kind shortly after Evolto reached Earth, working together with Evolt behind the scenes. Using the Cobra Lost Fullbottle with a Build Driver, combined with the Hazard Trigger and Great Cross-Z Dragon, Kengo can transform into Kamen Rider Blood.

[[quoteright:180:https://static.tvtropes.org/pmwiki/pub/images/kaisei_mogami.png]]
[[caption-width-right:180:[[labelnote:Kaiser]]https://static.tvtropes.org/pmwiki/pub/images/left_kaiser.png[[/labelnote]]]]
[[quoteright:180:https://static.tvtropes.org/pmwiki/pub/images/another_kaisei.png]]
[[caption-width-right:180:[[labelnote:Kaiser Reverse]]https://static.tvtropes.org/pmwiki/pub/images/kaiser_reverse.png[[/labelnote]]]]
[[quoteright:180:https://static.tvtropes.org/pmwiki/pub/images/bikaiser.png]]
[[caption-width-right:180:Bikaiser]]

Evolt's race and the main antagonists of TV series, ''Be the One'' summer movie and ''Build NEW WORLD: Kamen Rider Cross-Z'' V-Cinema. Originally from Planet Blood, its higher echelons escaped after their leader destroyed their home planet. Not much known about their early history, apart from being [[ObviouslyEvil obviously]] AlwaysChaoticEvil aliens who devoured countless of planets across the universe.

* EnemyCivilWar: While they're all OmnicidalManiacs, they differ in how they want to go about it, resulting in them coming into conflict with one another. Evolt wants to draw out destroying planets for his own amusement, Blood and his faction desires to destroy Earth [[PragmaticVillainy as quickly as possible so they can move on to the next one]], and whereas the other members want to survive the destruction of everything, Killbus wants to destroy ''literally'' everything, himself and the rest of the Blood Tribe included. The latter is why Evolt and the rest of the Tribe stole Pandora Box and headed off on their own.

[[quoteright:180:https://static.tvtropes.org/pmwiki/pub/images/kengo_ino.png]]
[[caption-width-right:180:[[labelnote:Kamen Rider Blood]]https://static.tvtropes.org/pmwiki/pub/images/kamen_rider_blood.png[[/labelnote]]]]

The new governor of Touto following the reunification of Japan. In truth, Kengo is a member of Evolt’s species, the Blood Tribe, and arrived with two others of his kind shortly after Evolt reached Earth, working together with Evolt behind the scenes. Using the Cobra Lost Fullbottle with a Build Driver, combined with the Hazard Trigger and Great Cross-Z Dragon, Kengo can transform into Kamen Rider Blood.

* OmnicidialManiac: An entire species of them dedicated to destroying all planets they come across.

* EvilCounterpart: [[spoiler:To Yui Mabuchi, of all people. Both Yui and Keiji were forcibly mutated into Lost Smash to be used to harvest the Lost Fullbottles. The key difference is that Yui managed to maintain her morality while ''Keiji'' took a running dive [[JumpingOffTheSlipperySlope off the slippery slope.]]]]
** Metal Build [[spoiler: as well as its upgrade Phantom Build]] is this to regular Build, as it represents the biggest fear its creators had when developing the Rider System: that would be used as a weapon of war to terrorize the people it was created to protect. This is even lampshaded by the Hokuto Three Crows when Metal Build is basically Build Hazard Form, the only form to instill fear into others instead of inspiring hope. This is also reflected in him using two Tank bottles, as [[spoiler:the inorganic half of Best Matches represents something that destroys the organic half]], something Sento defies but Keiji embraces.

* {{Foil}}: Relating to above, Uraga is also this to the main user, Sento Kiryu: they are narcissistic scientists but with different ideologies on how mankind should benefit the Rider System technology. Their face are also altered (Sento was modified from his original face (Takumi Katsuragi) while Uraga gained a large burn mark on his face) Their appearances when using a Hazard Trigger to assume an armored Hazard Form are opposites of each other; whereas Build uses either Rabbit or Tank armor parts as bright colors that appeared heroic, [[spoiler:Metal Build merged with a Phantom Crusher, a monster {{Mook}} olive color resemble army fighters and war]]. Finally, their means of stabilizing the Hazard Trigger are also contrasted in their complexity: Sento needed to create an entire new set of armor and separate device to double up on biotic/abiotic Fullbottles, while Keiji simply spoofs the Tank Fullbottle twice and dons the Hazard Body with no changes besides two grey Tank eyes.

The main antagonists of TV series, ''Be the One'' summer movie and ''Build NEW WORLD: Kamen Rider Cross-Z'' V-Cinema. Originally from Planet Blood, its higher echelons escaped after their leader destroyed their home planet. Not much known about their early history, apart from being [[ObviouslyEvil obviously]] AlwaysChaoticEvil aliens who devoured countless of planets across the universe.

* EvilerThanThou: To Evolt of all people. Evolt does think highly of humans ([[HumansAreTheRealMonsters for mostly twisted reasons]], albeit) while Killbus thinks everything is beneath him. Even Evolt is shocked at how destructive he is.

* GodzillaThreshold: Killbus just ''being there'' is enough to get Evolt [[EnemyMine to work with Ryuga and Team Build]].

* OneManArmy: Killbus is strong enough to destroy entire planets on his own, and thus doesn't need an army or henchmen to back him up. The only time he enlists any form of assistance in a battle is when he summons Smash to hold off Kamen Riders Grease and Rogue while he fights Cross-Z and Evol.

** Metal Build [[spoiler: as well as its upgrade Phantom Build]] is this to regular Build, as it represents the biggest fear its creators had when developing the Rider System: that would be used as a weapon of war to terrorize the people it was created to protect. This is even lampshaded by the Hokuto Three Crows when Metal Build is basically Build Hazard Form, the only form to instill fear into others instead of inspiring hope.

* TheStarscream: [[spoiler:Keiji would later betrays and kills Simon after his plans is near fruition.]]

* TheResenter: She spends a good part of the movie hating Banjou. [[spoiler:Because he didn’t help her and her students, it lead to her being experimented on and then killed to make a Lost Bottle. It doesn’t help that he explains when he first became a Kamen Rider, he was still self-centered that he wasn’t in the mindset to help the people around him. As such she thinks he [[AllAboutMe only cares about himself.]] It’s Misora and then Banjou later saving her from Killbas while he was weakened that made her change her mind about him.]]
* ShipTease: With Banjou. [[spoiler:The end of the movie has her giving him a big hug, kissing his cheek and helping him selling Sento’s inventions, with Sento even calling their outing a date.]]

* TheCaligula: The king of the Blood Tribe is not a very sane fellow, as one would probably expect from a race of sadistic {{Planet Eater}}s. He is even the one responsible for the destruction of their home planet, which he did purely to satisfy his bloodlust.

* EnergyAbsorption: They can absorb Nebula Gas from Riders, negating their transformation. [[spoiler:When one of them attempted on Kazumi and the Three Crows, it doesn't work.]]

* {{Foil}}: Relating to above, Uraga is also this to the main user, Sento Kiryu: they are narcissistic scientists but with different ideologies on how mankind should benefit the Rider System technology. Their face are also altered (Sento was modified from his original face (Takumi Katsuragi) while Uraga gained a large burn mark on his face). Last but not least is that when using a Hazard Trigger to assume an armored Hazard Form; whereas Build uses either Rabbit or Tank armor parts as bright colors that appeared heroic, [[spoiler:Metal Build merged with a Phantom Crusher, a monster {{Mook}} olive color resemble army fighters and war]].

* {{Foil}}: Relating to above, Uraga is also this to the main user, Sento Kiryu: they are narcissistic scientists but with different ideologies on how mankind should benefit the Rider System technology. Their face are also altered (Sento was modified from his original face (Takumi Katsuragi) while Uraga gained a large burn mark on his face). Last but not least is that when using a Hazard Trigger to assume an armored Hazard Form; whereas Build uses either Rabbit or Tank armor parts as bright colors that appeared heroic, Metal Build merged with a Phantom Crusher, a monster {{Mook}} whose appearance resemble army fighters and war.

** Metal Build [[spoiler: as well as its upgrade Phantom Build]] is this to regular Build, as it represents the biggest fear its creators had when developing the Rider System: that would be used as a weapon of war to terrorize the people it was created to protect.

The king of the Blood Tribe and Evolt’s older brother. He arrives searching for Evolt to reclaim the Pandora Box that Evolt stole from him and mistakes Ryuga for his brother.

* CainAndAbel: He tries to kill Evolt by absorbing him into the White Pandora Panel to use as energy for a new Pandora Box, [[spoiler:but Evolt gets the last laugh by fusing with Cross-Z to defeat him]].

* GreaterScopeVillain: Of the entire ''Build'' series. Killbus’ destruction of the Blood Tribe’s homeworld and his orders to the remaining members of his tribe is what drove Evolt and his minions to steal the Pandora Box and eventually pick a fight with Queen Vernage, setting the events of the series. Not bad for a character who only appears in one movie, huh?

* NiceJobFixingItVillain: Using Ryuga to recreate the Pandora Box near the start of the movie causes a ripple effect that [[spoiler:restores the memories of everyone who was subject to the Nebula Gas experiments.]]

* KickTheDog: Kasumi turning into a Smash that led to her death? That was his idea which he brags to Ryuga.

* EvilCounterpart: [[spoiler:To Yui Mabuchi, of all people. Both Yui and Keiji were forcibly mutated into their respective Lost Smashes, which would be used by Evolt to transform into, and later burned to death.]]

* RedIsViolent: Killbus’ Kamen Rider form is almost entirely red and his human guise wears mostly red clothing. Naturally he’s a pretty destructive fellow.

One of the leader of the terrorist organization Down Fall, Simon Marcus is a British prime minister and a high-ranking official of the Alliance of Nations who seeks to dominate the world by taking over Japan and its Rider technology.

* DefrostingIceQueen: She’s very cold to Ryuga [[spoiler:after regaining her memories. Well when you were ignored by a Kamen Rider when you were in trouble and then captured which led to being experimented on and then killed]], you would be rather cold too. She comes around at the end of the movie.

* SuspiciouslySimilarSubstitute: His personality is Evolt's, but with his LargeHam and OmnicidalManiac tendencies rampedUpToEleven, and is so bad that Evolt works with Team Build for his own sake.

* EnergyAbsorption: They can absorb Nebula Gas from Riders, negating their transformation. [[spoiler:When one of them attempted on Kazumi and the Three Crows, it doesn't work]]

[[folder:Mitsuomi Gohara]]
!!Mitsuomi Gohara / Zebra Lost Smash

[[folder:PhantomCrusher]]

* EliteMooks:

* EvilCounterpart: [[spoiler:To Yui Mabuchi, of all people. Both Yui and Keiji were forcibly mutated into Hazard Smash, which would be used by Evolt to transform into, and later burned to death.]]

* BladeBelowTheShoulder: She's loaded with bladed weapons on her arms as the Scissors Lost Smash.

* AncientEvil: Is Evolt’s older brother, and like him millions of years old.

A western terrorist organization led by Simon Marcus and the main antagonist of ''Kamen Rider Build NEW WORLD: Kamen Rider Grease'' as they kidnap Misora Isurugi and seek to take over the world.

One of the leaders of the terrorist organization Down Fall and the primary antagonist of ''Kamen Rider Build NEW WORLD: Kamen Rider Grease''.

* YouHaveOutlivedYourUsefulness: [[spoiler:Simon is later betrayed and killed by Keiji near the end of the film]].

One of the leaders of the terrorist organization Down Fall and the primary antagonist of ''Kamen Rider Build NEW WORLD: Kamen Rider Grease''.

The new new governor of Hokuto and a member of the Blood Tribe, arriving alongside Kengo Ino and Mistuomi Gahara. Using the Scissors Lost Fullbottle, she becomes the Scissors Lost Smash.

* EvilKnockoff: Before he swipes the Killbuspider, he simply uses Best Matches to become ''Build''. Even in this form he’s much stronger than Ryuga and holds the upper hand fight Evolt’s Blood Stalk form.

One of leaders of the terrorist organization Down Fall and the primary antagonist of ''Kamen Rider Build NEW WORLD: Kamen Rider Grease''.

One of leaders of the terrorist organization Down Fall and the primary antagonist of ''Kamen Rider Build NEW WORLD: Kamen Rider Grease''.

* EvilCounterpart: To Yui Mabuchi, of all people. Both Yui and Keiji were forcibly mutated into Hazard Smash, which would be used by Evolt to transform into, and later burned to death.

* FusionDance: [[spoiler:Uses the White Panel to fuse with Phantom Crusher's essence and becomes Phantom Build.]]

%%* SuspiciouslySimilarSubstitute: Take Evolt, ramp his LargeHam and OmnicidalManiac tendencies UpToEleven, and you get Killbas.

* BigBad: The main villain of the movie. He’s the one behind the plot to brainwash all of Japan and his Kamen Rider form makes him a deadlier threat than either of his cohorts.

* BeyondTheImpossible: Is said to be stronger than Evolt, without any use of the Evol Driver.

* TheCaligula: The king of the Blood Tribe is not a very sane fellow, as one would probably expect from a race of sadistic {{Planet Eater}}s. He’s even the one responsible for the destruction of their home planet, which he did purely to satisfy his bloodlust.

A terrorist organization led by Simon Marcus and the main antagonist of ''Kamen Rider Build NEW WORLD: Kamen Rider Grease'' as they kidnap Misora Isurugi and seek to take over the world.

!!Downfall

One of leaders of the terrorist organization Downfall and the primary antagonist of ''Kamen Rider Build NEW WORLD: Kamen Rider Grease''.

* BossInMookClothing: When transformed into Phantom Crusher
* TheLeader: Of Down [[spoiler: before getting shot]]
* YouHaveOutlivedYourUsefulness: [[spoiler:Gets shot by Kenji near the end]]

* EnergyAbsorption: Can absorb Nebula Gas from riders, negating their transformation. [[spoiler:When one of them attempted on Kazumi and the Three Crows, it doesn't work]]

One of leaders of the terrorist organization Downfall and the primary antagonist of ''Kamen Rider Build NEW WORLD: Kamen Rider Grease''.

* AscendedExtra: [[spoiler:Like Yui from the previous ''Build NEW WORLD'', he's one of the victims that Evolt used to make one of the four Lost bottles he already had.]]
* BackFromTheDead: [[spoiler:Also like Yui, he was originally killed in the World of Build but was revived when the new world was made.]]
* DarkIsEvil: He's a double abiotic rider, dyed in Hazard black.

* TheStarscream: [[spoiler:Betrays and kills Simon after his plans is near fruition.]]

* YouHaveOutliveYourUsefulness: Gets shot by Kenji near the end

* EnergyAbsorption: Can absorb Nebula Gas from riders. When one of them attempted on Kazumi, it doesn't work

* SpellMyNameWithAS: On some materials, [[spoiler:his final form is listed as Kamen Rider Phantom Metal Build.]]

[[folder:Simon Marcus[=/=]Phantom Crusher]]
!!Simon Marcus / Phantom Crusher

* AnimalMotif: Spiders, like Killbus.

!!Keiji Uraga / Kamen Rider Metal Build

* FusionDance: [[spoiler:Uses the White Panel to fuse with Phantom Chrusher's essence and becomes Phantom Build.]]
* TheSctarscream: [[spoiler:Betrays and kills Simon after claiming the power of the White Panel for himself.]]