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Protagonists

Kotaro Minami/Kamen Rider BLACK

Kotaro Minami/Century King Black Sun/Kamen Rider BLACK

Portrayed by: Tetsuo Kurata (live), Jiro Okamoto (suit actor)

A young 19-year old man born during the solar eclipse who was captured and turned into their cyborg Century King, dubbed "Black Sun", alongside step-brother Nobuhiko Akizuki by the cult Gorgom but escapes the brainwashing process thanks to his step-father's interference. With the powerful Kingstone of the Sun embedded into the Vital Charger belt, Kotaro transforms into Kamen Rider BLACK in his quest to save Nobuhiko from Gorgom's clutches.

To see his tropes applied to his appearance in Kamen Rider BLACK RX, click here.

Tropes that apply to him in general

https://static.tvtropes.org/pmwiki/pub/images/kohtaro_black_8.jpg

Century King of the Sun

All-Loving Hero: Like his predecessors. This is best shown where he shows compassion towards the Whale Mutant, who, despite being a Gorgom Mutant, wants to protect the sea.
Anti Anti Christ: Was created to become the next Creation King. However, he ends up as this thanks to his adoptive father.
Back from the Dead: After his death at the hands of Shadow Moon, the Whale Mutant manages to retrieve his corpse and revive Kohtaro with a special elixir that was passed down from the Whale Mutant's clan.
Cain and Abel: Tragically, as Century Kings, Kohtaro is the Abel to Nobuhiko's Cain.
Came Back Strong: From being revived by the Whale Mutant through a special potion, he manages to destroy Grand Mutant Darom with ease.
Determinator: Not even dying can stop him.
Even the Loving Hero Has Hated Ones: Compassionate as he may be, Kohtaro despises Gorgom for their cruel actions. Though he will make exceptions when deeming it fair.
Friend to All Children: Many episodes have Kotaro meeting a preteen with a personal issue and helping them work through it. He also coaches a children's soccer team in his spare time.
The Hero: The titular character of the series, and the one fighting to save Japan from Gorgom.
Hope Bringer: Most of the Japanese citizens under Gorgom's rule sees him as their only hope to regain their freedom. This is best shown where after BLACK defeats Grand Mutant Darom, the remaining human members of Gorgom repented from their evil ways and put their faith in him to put an end to Gorgom's tyranny.
Hot-Blooded: He's constantly on edge, and gets fired up whenever Gorgom is on the scene.
Iconic Sequel Character: He is considered by many as one of the most popular Kamen Rider protagonists of the Showa era, to the point that he appeared in the next series as The Hero once again.
Light Is Good: After the first 15 episodes, he starts wearing light riding jackets and light blue jeans. He's also an extremely compassionate and heroic individual.
Lightning Bruiser: Whether in human form or Rider form, Kohtaro is much stronger than an average Gorgom mutant. Potentially, he can even surpass the godlike Creation King, the latter powerful enough to conquer the multiverse at peak form.
Long-Lived: Since previous Creation Kings have lived for at least tens of thousands of years, the same should apply to Kohtaro as well.
Limited Wardrobe: A riding jacket, fingerless gloves, and blue jeans.
Messianic Archetype: Dies trying to redeem his corrupted adoptive brother, and resurrects several days later.
Nice Guy: He's polite and friendly to everyone he meets, and will often try to redeem the villain of the week rather than kill them.
One-Steve Limit: Averted. He shares his given name with Kamen Rider New Den-O
Our Hero Is Dead: At the end of episode 47, he was legitimately killed by Shadow Moon in their first duel thanks to the intervention of the Creation King. It didn't last long after he was resurrected 2 episodes later.
Phlebotinum Rebel: Is one of Gorgom's Chosen Ones who was set up to become one of their Evil Overlords, but escaped brainwashing and turned on them.
Properly Paranoid: Kotaro thinks that everything slightly out of the ordinary is a Golgom plot, and he's invariably correct.
Ripple-Effect-Proof Memory: Kohtaro's Kingstone makes him immune to time-altering shenanigans, at least so long as the writers don't forget about it.
Saved by Canon: Kamen Rider BLACK RX had already been greenlit when he was killed late in the series, making it obvious even at the time that he wasn't going to stay dead.
Took a Level in Badass: At the start of the series, Kohtaro visibly struggled against Gorgom's members, nearly being defeated by Bilgenia in their first duel. With experience, he eventually grew strong enough to best Shadow Moon in a duel, despite several disadvantages (e.g. Kohtaro's reluctance, Shadow Moon's use of the Satan Sabre).

Tropes exclusive to him as Kamen Rider BLACK

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

Animal Themed Super Being: BLACK was themed after the Southeastern Lubber Grasshopper, while his Grasshopper Mutant intermediate form was a Migratory Locust-based.
Bare-Fisted Monk: Similar to his predecessors, BLACK only relies on hand-to-hand combat along with the reliance of searching his enemy's weak points.
Dark Is Not Evil: Not just on the name. Black is the designated "Black Sun", soon to be the leader of Gorgom and destroy the world. He's the good guy, through and through.
Finishing Move: The signature Rider Punch and Rider Kick.
Mechanical Muscles: The exposed brown muscles in his transformed state called the "Strengthened Muscle - Filbron" which he received from his cyborg surgery grants him 30 times the strength of a normal human.
Weak, but Skilled: Only compared to Shadow Moon, at least before the Whale Mutant's ritual. Since Nobuhiko was damaged during their operation, his body was further modified, making him slightly stronger than Kohtaro. However, due to Kotaro never entering the same coma that Shadow Moon was in for most of the series, he obtained a large amount of combat experience. when the two actually do fight, Kotaro actually comes very close to winning. Sadly, the Creation King manipulates Kohtaro's reluctant attitude, allowing Shadow Moon to strike with a nasty surprise attack.
Transformation Name Announcement: "Kamen Rider - BLACK!"
Wrestler in All of Us: His fighting style includes lots of throws and grappling.

Kyoko Akizuki

Portrayed by: Akemi Inoue

The younger sister of Nobuhiko, she often finds herself targeted by Gorgom, who seek to use her to awaken Shadow Moon.

Put on a Bus: She and Katsumi flee Japan after Kohtaro is killed by Shadow Moon. They don't ever appear again afterwards.
Secret Secret-Keeper: After Kotaro is knocked unconscious in battle with Bilgenia and reverts to human form in front of Kyoko, he prepares to admit to being Kamen Rider Black, only for Kyoko to reveal that she had already deduced his identity long before.

Katsumi Kida

Portrayed by: Ayumi Taguchi

Nobuhiko's girlfriend and Kyoko's closest friend.

Put on a Bus: She and Kyoko flee Japan after Kohtaro is killed by Shadow Moon. They don't appear again afterwards.

Battle Hopper

Kamen Rider Black's sentient grasshopper-based motorcycle, created by Gorgom as a vehicle for the Century Kings.

Brainwashed and Crazy: Twice. First when insects corrupt him and make him go berserk, and again when Shadow Moon overrides Black's control of him.
Cool Bike: As with every other motorcycle rode by Kamen Riders.
Crazy Jealous Guy: Doesn't take kindly to Road Sector, despite the latter having no degree of sentience.
Heroic Sacrifice: After the second Brainwashed and Crazy stint. Thankfully he comes back in RX, having evolved into Acrobatter.
Non Human Side Kick: Despite being a bike he's the closest thing Kohtaro has to a sidekick and ally in his fight against Gorgom.

Road Sector

A prototype motorcycle conceptualized by Yoichi Daimon and created by Gorgom meant to be mass-produced for their mutants, it was instead stolen by Yoichi's son, Akira, and loaned it to Kohtaro and becomes his second Rider Machine.

Big Damn Heroes: In one of Black's movies, Kohtaro is trapped in a Pocket Dimension and swarmed by multiple Mutants, until Road Sector breaks through the dimensional barrier to rescue him.
Evil Counterpart: Has one in the form of Hellshooter.
Grow Beyond Their Programming: Despite not be an organic machine like Battle Hopper, Road Sector expressed concern about Kohtaro's safety more than once.
Law of Chromatic Superiority: After white, Red is the most prominent color on it's paint job.
Mid-Season Upgrade: Averted. Although its introduction would suggest it's this for Kohtaro, it acts as a supplementary bike to Battle Hopper.
Non Human Side Kick: Unlike Battle Hopper, Road Sector never really talks at all. It have some level of sentience, though.
Put on a Bus: Returned to its creator at the end of the series; not counting Let's Go Kamen Riders, it's remained unused by any Riders since.
Red Is Heroic: Red is its second most prominent color, behind white.
Signature Move: Attack Shield.

Gorgom

In general

A mysterious cult whose members occupy high-level positions in human society. Gorgom carries out various criminal and terrorist activities in the name of creating a superior race of mutants to subjugate humankind.

A Nazi by Any Other Name: Support the supremacy of mutants over humankind. They also share a number of the Nazis' Darwinian beliefs, namely the notion that the disabled or impaired ought to be euthanized.
Ancient Conspiracy: They've been operating in the shadows for at least 50,000 years, making them about as old as human history.
Asskicking Leads to Leadership: The "Creation King" of Gorgom is decided by first kidnapping two candidates that were born on a solar eclipse; with their bodies modified and a Kingstone embedded. Then, they have their minds corrupted into serving the organization, before fighting one another in a duel to the death. The winner is then crowned as Gorgom's new ruler.
Cult: They're a closed-off religious group which lures in wealthy and influential figures through the promise of power. They also engage in inane rituals, such as the one which decides their supreme leader.
Cut Lex Luthor a Check: Gorgom are a pretty big aversion. They're well aware of the appeal of their mutant conversion process, which gives those who undergo it superpowers and a thousand year long lifespan, and use it to entice prominent societal figures to join them with the promise they'll be rewarded with it in exchange for their loyal service.
Expy: With their cache of animal-themed monsters and Super Supremacist ideology, Gorgom is basically Shocker if they got political connections.
Fictional Political Party: The EP Party is a Gorgom-sponsored political party by which Gorgom plots to gain control of the Japanese diet.
In the Hood: All three of Gorgom's High Priests wear white hoods.
Les Collaborateurs: Despite its stated goal of subjugating humanity and establishing mutant role, Gorgom has no shortage of humans who willfully serve them. Justified as humans who do Gorgom's bidding get to become mutants themselves.
Light Is Not Good: In contrast to Black they all have mostly light appearances, with the Gorgom priests wearing white cloaks and Shadow Moon being bright silver.
Nebulous Evil Organisation: Gorgom is the shadowy organization purveying evil in BLACK.
Oddly Small Organization: Zig-zagged. Apart from all the Mutants they have in storage, the Three High Priests are usually all we see of Gorgom. However, it's indicated that the majority of Gorgom's members are human collaborators like Kuromatsu and Sakata who spend most of their time embedded in society.
Religion of Evil: Gorgom practices a religion centered around mutant supremacy and worship of their almighty Creation King.
Standard Evil Empire Hierarchy: Not technically an empire but they fit this pretty well.
- The Emperor: Shadow Moon.
- The Right Hand: Handmaiden Mutants Mara and Kara.
- The General: The Three High Priests. They aren't generals, but they plan and direct most of the mutant attacks.
- The Guard: Ryuzaburo Sakata and Koichi Omiya, who use their political and business connections to control various front locations for Gorgom.
- The Oddball: Hideomi Kuromatsu, the top scientist employed by Gorgom.
- Evil Counterpart: Bilgenia, and of course Shadow Moon.
- The Man Behind the Man: The previous Creation King, who still controls the cult behind the scenes.
Transhuman Treachery: Humans who join Gorgom do so with the desire of becoming a mutant and extending their lifespan, as well as surviving Gorgom's invasion of human society.

Leadership (Unmarked Spoilers for Both)

Creation King

Portrayed by: Takeshi Watabe (voice)

Great Leader of Gorgom

The highest leader of Gorgom who bestowed the Kingstones to his two potential successors.

Barrier Warrior: He can create barriers strong enough to endure Road Sector's ramming attack. However, it cannot withstand the Satan Saber.
Big Bad: Obviously, since he is the leader of Gorgom.
Dark Lord on Life Support: By the time the series begins, the Creation King is already approaching the end of his lifespan. By the time we actually see him all that's left of him is his heart.
Depending on the Writer: His origins count as this. "Kamen Rider: Seigi No Keifu" hints that he (and his competitor) were corrupted into serving Gorgom, with both no longer seeing themselves as "human". However, S.I.C reveals that he is the original Creation King himself, having possessed his successors' bodies to cheat death. "Kamen Rider: Battride War Genesis" explains that he is the incarnation of evil, capable of leeching off the malice of others to survive fatal wounds.
Evil Is Visceral: He's a giant floating heart since his body was destroyed a long time ago.
Evil Sounds Deep: Voiced by Takeshi Watabe, so naturally he has a deep and menacing voice.
Expy: Arguably of the Great Leader of Shocker, being the unseen leader of the evil organization of the series. Unlike with the sequel series, there's nothing to suggest that he's just another incarnation^note, meaning that he's a separate character.
The GM Is a Cheating Bastard: Kohtaro teams up with Whale Mutant? Teleport Kohtaro away. Kohtaro is winning against Shadow Moon? Deceive Kohtaro so that Shadow Moon can ambush him.
Honor Before Reason: Of the twisted kind. The Creation King is adamant to uphold Gorgom's traditions, hence why he never personally attempts to kill Kohtaro and take away his Kingstone. Even near the brink of death, he tried make Kohtaro the new ruler of Gorgom, despite literally having no real reason to do so by that point.
Manipulative Bastard: When Kohtaro looks like he might win against Shadow Moon, the Creation King temporarily reverts the latter back into Nobuhiko. This causes Kohtaro to drop his guard and suffer a nasty wound from Shadow Moon.
No One Sees the Boss: Spends most of the show offscreen. It isn't until the final episodes we see what he really looks like.
Non-Action Big Bad: For whatever reason, it never attacks Kohtaro directly, despite being more than capable of harming the Three Priests and Shadow Moon when angered. It is possible though, that he is conditioned to follow Gorgom's traditions without fail, similar to Shadow Moon himself.
Omnicidal Maniac: When Black refuses to kill Shadow Moon and complete the succession ceremony, the Creation King threaten to plunge itself into the center of the Earth and destroy the entire planet unless he does so.
Predecessor Villain: To Shadow Moon, his planned successor.
Really 700 Years Old: Has been living for 50,000 years, which is how long each Creation King is supposed to live. In fact, the entire reason the plot kickstarts is that his life is almost over, and he needs a successor.
Satanic Archetype: Even more than his potential successor Shadow Moon. He is a leader of a dark cult who spearheaded his succession rites to two young men against their will, having most of the societal elites made a deal with him through his High Priests, and is willing to cause mass genocide to those who were not part of his cult.
Suddenly Voiced: For most of the series spending himself hiding within the Gorgom HQ, the Creation King only communicates to his underlings via telepathy until the final episodes where he's finally speaking when the endgame draws near.
Villain of Another Story: To earn his title, the Creation King had to duel against another Century King for leadership of Gorgom, as seen in a flashback.
Walking Spoiler: It's really hard to talk about him without talking about spoiling the end of Black.
We Can Rule Together: When Black defeats Shadow Moon, the Creation King naturally tries to get him to become his successor instead. Black of course refuses.

Nobuhiko Akizuki/Shadow Moon

Nobuhiko Akizuki/Century King Shadow Moon

Portrayed by: Takahito Horiuchi (live), Masaki Terasoma (voiced), Tokio Iwata (suit actor)

The step-brother of Kohtaro and older brother of Kyoko, also born during the solar eclipse, who was captured by Gorgom and converted into their Century King. However, unlike Kohtaro, he ended up being brainwashed and put in a hibernation state until the High Priests sacrificed their stones to complete his transformation into Shadow Moon, done in create the next Creation King.

Tropes that apply to him in general:

https://static.tvtropes.org/pmwiki/pub/images/nobuhiko_black.jpg

Century King of the Moon

Cain and Abel: Not by his choice, but as his brainwashed self, he's dead set on killing Kotaro to solidify his place as the next Creation King.
Distressed Dude: For most of the series, Nobuhiko was held captive by the High Priests as he was in his comatose state until his modifications were complete.
Hidden Depths: Deep underneath Shadow Moon's cruel personality, a sliver of Nobuhiko still remains inside. At one point, he outright relinquished the chance to take away Kohtaro's Kingstone, partly because the Creation King temporarily reverted him back into human form.
Face–Monster Turn: Nobuhiko was originally a kind and good man before he was corrupted by Gorgom.
Friendly Rival: Towards Kotaro as brothers, even playing soccer together in high school.
Satellite Character: Nobuhiko's role is primarily defined by how close he is with his stepbrother, sister, and girlfriend, and he never gets any development beyond that, mostly because he spends about half the series captured and in a sort of magical stasis, and the other half brainwashed as Shadow Moon.
Tragic Villain: Was a kind person before being abducted and Brainwashed by Gorgom.
Walking Spoiler: It's not hard to talk about his whole existence of being a man who would tragically become Kotaro's worst enemy in the end.

Tropes exclusive to him as Shadow Moon:

https://static.tvtropes.org/pmwiki/pub/images/shadow_moon_6.png

Antichrist: Unlike Kotaro, Shadow Moon is fully in on being a Century King and subjugating the human race thanks to the brainwashing he received from Gorgom.
Breakout Villain: By far and away the most popular individual Kamen Rider villain. He's made constant reappearances and popped up as the Big Bad of several movies and specials after RX, and is seen as the template which all evil Riders are based on even though his Rider status is debatable at best. And on top of it, his incarnation in the reboot series has a "Kamen Rider" status on it.
Dark Messiah: Revered by Gorgom as their religious figurehead.
Dragon-in-Chief: When he awakens he's subordinate to the Creation King, as he has yet to complete the actual ascension ceremony. Despite this, as the Creation King is just a giant immobile heart, Shadow Moon is the one who leads the cult up front and serves as the more formidable threat to Black, carrying the Creation King's will in their quest to kill Kamen Rider BLACK in order to achieve world domination.
Evil Counterpart: Inverted. BLACK is the Good Counterpart since the Century Kings were meant to be brainwashed into evil in the first place.
Even Evil Has Loved Ones: Despite losing almost all remanents of Nobuhiko, Shadow Moon retains his affection for Kyoko and Katsumi, outright declaring that he loves them.
Evil Genius: Nobuhiko was highly intelligent before he got forcibly inducted into Gorgom. As Shadow Moon, he now puts his mind to work formulating evil schemes to further Gorgom's goals.
Evil Overlord: He's the anointed god-king of a cult bent on world domination.
Expy: Of Hakaider, being a robotic warrior who's the Evil Counterpart to his brother, being obsessed with defeating him. However, while Hakaider wields a gun, Shadow Moon wields a sword as his weapon of choice. Shadow Moon, in turn, has gone on to inspire a number of villains both in the Kamen Rider franchise and outside of it, such as Black Beet, Wolzard, and to a lesser extent, his Alternate Company Equivalent Deathferd. Pretty much every evil Rider in the series borrows something from Shadow Moon as well.
Fatal Flaw: As Shadow Moon, being full of himself and his cruelty towards Black proves to be his own undoing when Black used the Kingstone Flash to nullify his hold over Battle Hopper, ultimately resulting with him being Rider Kicked after taking a big hit from Battle Hopper's suicide attack.
Hero Killer: With the help from the Creation King, he managed to kill Black during their first match.
Hoist by His Own Petard: He was easily winning his penultimate duel with Black but just to be cruel decided to hijack Battle Hopper to kill Black with his own bike. Instead Black reasserts control and Battle Hopper charges at him with a suicide attack, not only wounding Shadow Moon but also leaving him wide open to Black's Rider Kick that further cripples him and forces him to retreat. In their final battle a short while later he's still so beat up, he doesn't even stand a chance against a Satan Saber-wielding Black and is easily defeated in a Single-Stroke Battle.
Knight of Cerebus: Shadow Moon's awakening sees the plot return to the dark and gloomy atmosphere it had at the start of the series, following a period of filler, and is what kickstarts the final arc.
Light Is Not Good: His colors contrast BLACK's (being whitish silver with green eyes, compared to BLACK's black armor with red eyes), and if you couldn't tell by the other tropes.
Lightning Bruiser: Compared to Black's sleeker appearance, Shadow Moon has more armor-looking in appearance due to being a far more cybernetic version of a standard Century King form.
Mascot Villain: Shadow Moon is about as iconic to Kamen Rider Black as Black himself is.
Secondary Color Nemesis: Shadow Moon's eyes are green, in contrast to the heroic red of Black Sun's.
Shock and Awe: Comes in green, yellow, and red variants.
There Can Only Be One: Seeks to kill Black and claim his Kingstone in order to become the next Creation King.
Tin Tyrant: From the moment he's awakened, Shadow Moon stays clad in his silver-armored Century King form. His true form as Nobuhiko only comes out in moments of lucidity.
Unskilled, but Strong: Compared to Black, Shadow Moon is this at the start, due to being in a coma for most of the series.

The Three High Priests

Darom

High Priest/Grand Mutant Darom

Portrayed by: Shōzō Iizuka

https://static.tvtropes.org/pmwiki/pub/images/darom_list_image.jpg

High Priest of Wisdom

^{Click here to see his Grand Mutant form.}

The leader of the High Priests.

Big Creepy-Crawlies: His Grand Mutant form is based off a trilobite.
Demoted to Dragon: Serves as The Heavy for most of the series until Shadow Moon revives, at which point he and the other High Priests willingly pledge their servitude to him.
Diabolical Mastermind: He's the one who fronts most of Gorgom activities, forging political and business connections to bolster Gorgom's standing whilst masterminding various plans to undermine human society.
Evil Genius: Darom is usually the one who masterminds the cult's schemes and the one who appears to know the most about Gorgom's rituals.
The Heavy: Default leader of the High Priests and the one directing Gorgom's activities until Shadow Moon's revival.
Mister Big: He's actually the shortest of the Three High Priests.
Older Than He Looks: Downplayed, since he obviously looks like an old geezer. However, official materials reveal that he is actually older than the current Creation King himself, having served Gorgom since the previous Creation King's rule.
Psychic Powers: Can manipulate others simply by pointing at them.

Baraom

High Priest/Grand Mutant Baraom

Portrayed by: Toshimichi Takahashi

https://static.tvtropes.org/pmwiki/pub/images/baraom_list_image.jpg

High Priest of Battle

^{Click here to see his Grand Mutant form.}

A member of the High Priests.

The Brute: Baraom is the toughest and most physically powerful of the high priests.
Defiant to the End: After Black defeats him with the help of Whale Mutant, he boasts to Black that he will still have to confront Shadow Moon, then unleashes one final burst of electricity at him before exploding.
Light Is Not Good: Not as much compared to his fellow high priests. He wears a white cloak like them, but his face is a dark green rather than white. The evil part needs no explanation.
Mega Neko: Baraom's Grand Mutant form is a saber-tooth cat-like creature.
Nice Job Fixing It, Villain: If he didn't backstab Whale Mutant during his final duel against Black, then Gorgom's downfall wouldn't happen.
Shock and Awe: Was able to shoot lightning from his hand, originally it was due to cybernetic but after becoming a High Mutant he gained the ability to do it naturally.

Bishum

High Priestess/Grand Mutant Bishum

Portrayed by: Hitomi Yoshii

https://static.tvtropes.org/pmwiki/pub/images/bishum_list_image.jpg

High Priestess of Prophecy

^{Click here to see Bishum's Grand Mutant form.}

A member of the High Priests.

Cute Monster Girl: Noticeably more human-like than her fellow High Priests, even in her Grand Mutant form.
Gold and White Are Divine: As with her fellow High Priests, she wears mostly white.
Ms. Fanservice: Her Grand Mutant Form wears a very tight spandex.
Sensual Spandex: Her Grand Mutant appearance comes complete with a leotard.
The Smurfette Principle: The only female High Priest, and really the only prominent female member of Gorgom apart from Mara and Kara.
Taking You with Me: Tries to perform this against Black by restraining him so that Shadow Moon could kill him. If it weren't for Kyoko's interference, she would have succeeded.

Other Members

Bilgenia

Sword Saint Bilgenia

Portrayed by: Jun Yoshida

https://static.tvtropes.org/pmwiki/pub/images/bilgenia_list_image.jpg

Sword Saint of Gorgom

A failed candidate for Creation King, born 30,000 years ago on a Solar Eclipse.

Asshole Victim: After his frequent bragging of becoming the next Creation King, Bilgenia got his ultimatum of being a pawn in the Creation King's schemes that leads to the rise of Shadow Moon. In fact, all of the members of Gorgom are happy that he got slain by Shadow Moon after they got fed up of his repeated failures of defeating Kotaro many times.
Big Bad Wannabe: Wants to become the next Creation King, but he never stood a chance against Shadow Moon, especially while injured.
Black Knight: Although he's red, he fights most of the classical criteria for this, being an armored swordsman gone errant.
Dragon with an Agenda: While Bilgenia is technically doing the bidding of Gorgom, he's mainly motivated by his own goals.
Sealed Evil in a Can: Was this at the start of the series. The Creation King eventually forces his release.
Small Name, Big Ego: Believes himself to be the true heir to the Creation King. As Shadow Moon sneeringly pointed out, he had no chance whatsoever, having been born far too early to be deemed worthy by Gorgom's members.
Wild Card: Although he's unquestionably evil, he doesn't work with Gorgom's high priests, nor does he attempt an Enemy Mine with Kohtaro.
Weak, but Skilled: Despite not having a Kingstone, he was initially more than capable of threatening Kohtaro as Kamen Rider Black, rivaling the Three Priests in prowess. That said, Bilgenia gradually becomes less of a threat as Kohtaro learned to harness his own powers.
The Worf Effect: He initially subverted this, proving one of Kohtaro's toughest foes among Gorgom. However, with time and experience, Kohtaro soon proved more than capable of besting him in a fight. While initially subverted once more after gaining the Satan Sabre, he is ultimately Killed Off for Real by Shadow Moon in the latter's debut.

Handmaiden Mutants

Mara and Kara

Portrayed by: Yoshie Sakata (Mara), Mari Kanda (Kara)

https://static.tvtropes.org/pmwiki/pub/images/handmaiden_mutant_mara_1.jpg

The female attendants to Shadow Moon.

Co-Dragons: They're Shadow Moon's top minions, technically making them this as this puts them as his Number Twos above the High Priests.
Expy: As a gold and silver duo of female minions, they're clearly following on Keller and Mirror.
Femme Fatalons: Both have long red fingernails.
Satellite Character: Their existence entirely revolves around Shadow Moon.

Gorgom Mutants

Monsters created by Gorgom to carry out their schemes.

Animal-Themed Superbeing: Each has the motif of a different plant or animal.
Master Race: Intended by Gorgom as a superior race to supplant humanity.
Monster of the Week: Each episode, one is sent out to either defeat Black or carry out an evil scheme.
Mook Promotion: If you're a human who serves Gorgom loyally for enough time, you'll eventually be rewarded with conversion into one.
Mooks: Unlike other Kamen Rider evil organizations, Gorgom doesn't have a combatmen force, so whenever they need more muscle they'll just mass produce a particular Mutant.
Time Abyss: The average lifespan of a Gorgom Mutant is 5,500 years. This makes the prospect of becoming one very appealing.
Was Once a Man: Many appear to have once been human.

Human Liaisons

Hideomi Kuromatsu

Professor Hideomi Kuromatsu

Portrayed by: Susumu Kurobe

https://static.tvtropes.org/pmwiki/pub/images/hideomi_kuromatsu_list_image.jpg

The Corrupt Professor

A Nobel Prize-winning professor who moonlights as a scientist for Gorgom.

Maker of Monsters: Fully capable of performing the remodeling surgery that turns people into mutants. Ironically, he seeks to become a mutant himself.
Morally Ambiguous Doctorate: Uses his scientific prowess to perform experiments for Gorgom.
More Despicable Minion: His plans tend to be much nastier than those the High Priests come up with.
You Have Failed Me: Executed by the High Priests offscreen for failing to kill Black.

Ryuzaburo Sakata

Portrayed by: Koreharu Hisatomi

The Corrupt Politician

A Japanese politician who heads the pro-Gorgom EP Party.

Corrupt Politician: Uses his political connections to further Gorgom's schemes.
Four Eyes, Zero Soul: Wears glasses and is one of the most cold-hearted characters in the show.
Karma Houdini: Although Kotaro foils several of his schemes, Sakata disappears from the narrative rather than be defeated and is never seen being brought to justice.
More Despicable Minion: Like Kuromatsu, his schemes are a lot nastier and closer-to-home than the typical Gorgom fare.
The Social Darwinist: One part of his agenda is to eliminate "undesirables" Gorgom does not believe are worthy of becoming mutants.
Villain with Good Publicity: To the public he's an honest and hardworking politician, and the political party he founded is a movement for peace, with few aware of his Gorgom ties and the shady stuff he does in their name.

Koichi Omiya

Portrayed by: Harukazu Kitami

The Corrupt Businessman

A wealthy businessman who heads a conglomerate called the Omiya Konzern and is secretly a member of Gorgom.

Corrupt Corporate Executive: A company president who uses his business as a front for Gorgom and helps them with their schemes.
Karma Houdini: Like Sakata, he's never seen being brought to justice.
Minor Major Character: He only pops up in a few episodes, but he gets name-dropped a lot and his company is a convenient front for Gorgom's schemes.
Villain with Good Publicity: His Gorgom ties are unknown, so to the public he's an honest businessman and philanthropist.

Characters / Kamen Rider BLACK

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