This is a partial character sheet for Kamen Rider Fourze. Visit here for the main character index. Subjective trope and audience reactions should go on the YMMV page.
Beware unmarked spoilers. You Have Been Warned.
Horoscopes are a group of twelve Zodiarts, each representing a constellation of the Western Zodiac. They are direct subordinates to Gamou, giving out Zodiarts Switches on his behalf, and are notably stronger than regular Zodiarts. A Horoscopes member can be identified by the distinctive black robes they wear, which act as Power Limiters to their true potential.
A Horoscopes is created when a Zodiarts exceeds the Last One stage of the Zodiarts Switch, reabsorbing its human body and evolving into an even more powerful form. Only certain talented individuals have the potential to become a Horoscopes; thus, it is the Horoscopes' mission to find and awaken all twelve of their kin.
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General Tropes
- Badass Long Robe: Every Horoscopes wears a cloak, the better to dramatically toss it aside before battle.
- Co-Dragons: There are often two or three at once. For the better part of the series, you had Hayami on Zodiarts-recruiting duty, bodyguard Tatsugami ever at Gamou's right hand, and executioner Virgo as the chief puncher of things.
- Deadly Upgrade: The Supernova forms that several Horoscopes have are risky to use for too long, due to raising the Cosmic Energy in the user's body to the point of risking a Superpower Meltdown.
- I Am Not Left-Handed: According to offical materials, their robes limit their power to some degree and casting them off allows them to fight at full power.
- Mooks: The Stardust Ninjas called Dustards, which the Horoscopes can create in large numbers. Tatsugami has his own Elite Mooks version, the Leo Dustards, which apply Conservation of Ninjutsu and only appear as a pair in exchange for being much more powerful.
- One-Winged Angel: A Horoscopes is this to a regular Zodiarts already, being the final form of their evolution which switches their original constellation out for one of the twelve Western Zodiac signs and grants a host of new powers. The Horoscopes themselves can apply the trope a second time by unlocking a Supernova ability, either through training or by having Gamou unlock it for them, which grants a new power or a temporary transformation into a more powerful form.
- The Power of Hate: Since the Horoscopes run on negative Cosmic Energy, their powers tend to increase when they undergo intense surges of malice. It's implied that this is what makes the Cancer Zodiarts grow so powerful so quickly, as he's one of the few Zodiarts who openly revels in being evil and has no positive qualities. Gamou himself averts this by being genuinely Affably Evil, instead being the most powerful simply because he's spent decades mastering his powers.
Mitsuaki Gamou/Sagittarius Zodiarts
The Red-Eyed Man/Mitsuaki Gamou/Sagittarius Zodiarts
Portrayed by: Shingo Tsurumi
He is secretly the mastermind behind the Zodiarts, and has been distributing the Zodiarts Switches amongst the students of his school for reasons unknown. His eyes often glow with an unearthly red light, and he possesses the ability to wield Cosmic Energy in a raw form. Near the end of #34, Hayami finds out that his Zodiarts form is Sagittarius and he transforms into it in #42.
- Affably Evil: Gamou is the type to call you over in the cafeteria to try a new soup he's made himself, then a few hours later break into your headquarters and kill your best friend in front of your eyes, apologize for the fuss and thank you for finding the soup delicious enough that he's added it to the menu. What a nice guy.
- A God Am I: Not a direct case, but Gamou claimed himself to others as the "sun" and the "apex of evolution".
- Ambiguously Human: Because Gamou has been using the Switches for so much longer than anyone else, even his human form has power over negative Cosmic Energy that lets him exhibit control over other Zodiarts and even other Horoscopes, usually associated with his eyes turning a bright red color.
- Anti-Villain: Gamou's ultimate goal is simply meet the Presenters, and help humanity evolve. He has very little, if any, genuine malice and none of his acts are committed out of actual sadism, rather because they're necessary to reach that goal. He's actually genuinely Affably Evil and a pretty friendly guy all things considered, and ironically is one of the few Kamen Rider main villains to be a Friendly Enemy. There's also the fact that negative Cosmic Energy is inherently corrupting and he's been using it far longer than anyone else.
- Arrows on Fire: Which are called Apostolos.
- Ascend to a Higher Plane of Existence: His ultimate goal is to meet the Presenters and evolve beyond human.
- Big Bad: The ringleader of the Zodiarts.
- Non-Action Big Bad: He leaves the more direct approach to his subordinates. Until #42, which ends with a Final Boss Preview. Then he takes the straight role of Big Bad.
- Bishounen Line: Sagittarius looks like most Kamen Rider final bosses- huge and overdesigned. Sagittarius Nova is far more streamlined, almost resembling a Kamen Rider himself.
- Book Ends: Notice what happens at the beginning and ending scenes of #45?
- Bystander Syndrome: When asked what will become of Japan after his endgame, he pretty much responds that it's up to them. They want to follow his example? good. Japan gets destroyed as he ascends? Not his problem.
- Drunk on the Dark Side: Gets more and more unhinged as he gets closer to his goal.
- Entitled Bastard: After Hayami gave his life to protect him, Gamou states that he's the sun and Hayami was just a planet orbiting him and that's why Hayami saved him, not because he actually cared.
- Evil Overlooker: The newest version of the OP (#35 on) shows him alongside the Horoscopes in this manner.
- Expy: Of Ryubee Sonozaki. Big Bad from day one? Check. Extremely powerful monster form? Check. Plan involves causing the apocalypse? Check. Somewhat redeems himself in his final scenes. Check.
- Foil: To Gentaro in that where Gentaro is a Magnetic Hero who cares more about his friends than anything else, Gamou cares only about himself and sees no value in friendship at all.
- Face Death with Dignity: After being defeated by Fourze, he realizes that his body is breaking down from overuse of negative Cosmic Energy triggered by his Zodiarts form being destroyed. He simply quietly concedes his loss, accepts Gentaro's friendship, and wanders off to resurrect Kengo before dying under the stars.
- Fatal Flaw: Impatience. The entire series is due to him being too impatient to take the slower, but far safer road of making the Fourze System vs his quicker, but far more dangerous Zodiarts Switches because he could stand the idea of not being the one to see the Presenters.
- Friendly Enemy: For all his villainy, he is generally genuinely friendly the Kamen Rider Club most of the time and at the very least bares no real malice towards them. It's even explicitly noted that other than the whole handing out Zodiarts Switches thing, he's actually a pretty good, well liked principle.
- Go-Karting with Bowser: Granted, the club has yet to figure out he's the Big Bad, but he did go out of his way to cook for Kengo's birthday. A big part of what makes him so Affably Evil. He also helps the KRC in the climax of The Movie by being one of the forty switchers.
- Graceful Loser: He takes his defeat extremely well, accepts Gentaro's friendship, and quietly wanders off to let his Superpower Meltdown kill him after resurrecting Kengo.
- Hero Killer: Due to Kengo being a huge obstacle in his aspiration to get to the Presenters, Gamou eventually resorted into using Supernova to kick him and damage the Core Switch, thus making Kengo dissolve. Not that it stopped Gamou from becoming Aquarius to restore said Switch and Kengo in his final moments upon seeing the error of his ways.
- Hidden Agenda Villain: It takes a while for it to come out that he distributes the Zodiarts Switches to students in order for them to evolve into the remaining Horoscopes.
- Heel Realization: The heroes fighting him, not with hate, but with The Power of Friendship manages to make him see the light in the end.
- Hoist by His Own Petard: Very nearly happened to him in #46 when he discovers as he's preparing to Ascend to a Higher Plane of Existence that while its happening he's completely powerless. If it weren't for Hayami Taking the Bullet for him, he'd have been finished.
- Hypocrite: While he says he never had a friend and that friendship is useless, he was visibly saddened by Emoto's betrayal and subsequent death and the next arcs are basically him trying to find new companions for his space travel (even going so far as to ask Hayami, who he was treating like crap up to that point, to come with him).
- It Amused Me: Hayami mentions that this is why there was a "bonus question" in the astronaut qualification test."He was having a little fun."
- It's All About Me:
- Gets called this in #45, but really shows it when Hayami sacrificed himself for him.
Gamou: I am the sun, he was simply a planet that orbited me. It's only natural he'd defend me.- In general, this trope defines much of Gamou's villainy: unlike many Kamen Rider villains, he's not really sadistic and takes no real pleasure from harming others, he's simply apathetic to the suffering his actions cause others so long as he gets the goal he wants in the end.
- Jedi Mind Trick: How he got the police to forgo their investigation of the school.
- Karmic Death: He dies due to the strain his switch put on him. He even lampshades it.Gamou: I pushed my evolution too much.
- Meaningful Name: In a bit of a stretch, the kanji that comprise Gamou's first name are translated as "bright light", which is one of the epithets of the god Apollo, who was also the god of archery, and Sagittarius is primarily identfied as "The Archer", despite its common and mistaken depiction as a centaur. Emoto illustrated this connection to Apollo further when he descibes Gamou as "like the Sun".
- Mighty Glacier: Monstrously powerful, but his reliance on mostly long range attacks means that he doesn't have to move very fast.
- My Greatest Failure: He states to Kengo in #34 that he felt sorry for not saving his father, but that might be a lie.
- Nietzsche Wannabe: He thinks that friendship is useless.
- One-Winged Angel: Towards the end of the series becomes the Sagittarius Zodiarts. He also gets a Supernova form on top of it.
- Only Known by Their Nickname: Initially, as "The Red-Eyed Man".
- Orcus on His Throne: He's mostly been seated on his chair and talking to the Zodiarts. Until he transforms in into the Sagittarius Zodiarts.
- Pet the Dog: For a Toku villain, he seems unusually committed to having his minions not die. He chooses to send those that repeatedly fail him to the Dark Nebula, and he makes an effort to have Virgo rescue those who are taken out by Fourze in space. He even wipes out memories of some of his fellow Horoscopes as an alternative to the Dark Nebula. This can be justified since he only seems to want the Horoscopes Switches instead. When he is eventually forced to kill off one of the Horoscopes, he does seem legitimately remorseful about it.
- He seemed to generally like (or at least be amused by) Yuki even before she said she could hear "The Voice of Space"; after that, he tries to recruit her and when he fails laments that he'll be all alone in the end.
- Playing with Fire: Has arrow-shooting abilities, the design of his Zodiarts form has some flame elements to it, and his debut fight has him walking on the flames he made.
- Rain of Arrows: Can summon a bombardment of them to defeat and force his opponents out of their transformation.
- Rasputinian Death: Takes the Finishing Move of every one of Fourze's States, including Rocket States, in a row (two from Cosmic States), a beat down from Gentaro (read: not in Fourze's Suit!), and finally a quadruple Limit Break from Base States to finally take him down.
- Real Men Wear Pink: Who would've thunk that the Big Bad is an excellent cook?
- Redemption Equals Death: After Fourze finally defeats him, Gamou finally accepts the latter's belief in the The Power of Friendship — and they do the Secret Handshake. However, Gamou realizes that his abuse of Sagittarius is finally taking a toll on his body. He then walks off and transforms into Aquarius Zodiarts so he could use its healing powers to fix the Core Switch, reviving Kengo in the process, before he fades away into Cosmic Energy.
- Red Eyes, Take Warning: His eyes occasionally flash red in moments of frustration. They also serve as a Red Herring to trick the viewer into thinking he killed Kengo's dad.
- Shed Armor, Gain Speed: His Nova form discards armor, making him fast and powerful enough to defeat Kengo's Core Child powers.
- Shoot the Dog: In the end, he orders the death of quite possibly his closest comrade and only friend, Emoto. After retrieving Virgo's Switch, he actually seems to feel bad about what he did. For about the span of a few seconds.
- The Dying Walk: His overuse of negative Cosmic Energy ends makes it so when Fourze defeats him, his body begins to fall apart. After conceding he lost and gracefully accepting his defeat, he wanders off to resurrect Kengo and die quietly.
- Villain Ball: Minor instance. He started to banish Hayami to the Dark Nebula for losing to Fourze though (a) he actually succeeded in the task he'd been sent to do despite battling Fourze Cosmic at the same time and his powers aren't even strictly combat-oriented, and (b) he was the only one left whose job was to recruit new Zodiarts, as the remaining Horoscopes were bodyguard Tatsugami and executioner Virgo - more about punching things than the kind of job Sonoda and later Hayami had - and (c) his position with the school made him a very useful inside man, and with Sonoda gone, he's got no one else on the faculty. Basically, Gamou didn't just almost pull a You Have Failed Me on a guy who didn't fail, and in fact just did something highly impressive, but on someone totally irreplaceable. And while there are villains out there who'd utterly screw themselves out of victory for the sake of pointless cruelty because you're not properly eeeevil if you miss a puppy-kicking opportunity, as you see from the rest of this entry, Gamou was never like that before or since, so it was pretty glaring. There had to be less clunky ways to introduce the Eye of Laplace ability.
- Villainous Breakdown: After Kengo denies him the entry into the Dark Nebula, he loses his composure and gets pissed, even beating around Tatsugami a bit before unlocking his Super Mode, though he gets a bit better.
- Villain's Dying Grace: After being defeated by Fourze, resulting in a Superpower Meltdown that will kill him, he uses the Aquarius Switch to revive Kengo before dying.
- Walking Spoiler: Not the man himself, it's made very clear by his first appearance that he's the Big Bad. But his motivations, good lord...
- Well-Intentioned Extremist: If Sonoda is to be believed, he's apparently trying to benefit mankind. It seems he believes that the destruction of Japan would be worth forcing what will remain of humanity to evolve just as he did. Overlaps with Social Darwinist.
- Ultimate Lifeform: He considers himself this.Gamou: I am the apex of human evolution, the Sagittarius Zodiarts.
- You Monster!: The Kamen Rider Club's reaction to him completely disregarding Hayami sacrificing himself for him.
Sarina Sonoda/Scorpion Zodiarts
Sarina Sonoda/Scorpion Zodiarts
Portrayed by: Yuka Konan (live), Eiji Takemoto (voice, Scoprion Zodiarts)
- Absurdly Sharp Blade: The stinger can pierce through the bottom of a metal trolley and stings Gentaro.
- Beware My Stinger Tail: It has an extendable scorpion tail on its head that can inject a deadly poison into whoever it stings. It was able to sting Gentaro and JK, and merely grazing Shun has that effect, but the three were saved with the Medical Switch.
- Beneath the Mask: Despite her popularity and kind demeanor, she can occasionally be heard complaining about the selfishness of her students behind their backs (especially Gentaro "delinquency" and Kengo's standoffishness). Taken up a notch when it is revealed she is actually the Scorpion Zodiarts.
- Bitch in Sheep's Clothing: Sonoda acts like a courteous teacher as a way to overlook the student body under her loyalty towards Gamou, attempting to persuade Switchers under her to unleash their darker emotions.
- Brought Down to Normal: After being defeated by Fourze, she has her Switch taken away.
- Canis Major: She was originally the Canis Minor Zodiarts, before she evolved into Scorpion.
- Character Tics: Sucks her teeth in #17, to add to her growing dislike of Gentaro. Also doubles as a Mythology Gag to Kamen Rider Double, since this was Wakana Sonozaki's tic in that series.
- Death by Irony: Sonoda's grudge on Gentaro ultimately defeated her. For added irony, said breakdown was caused by Miura rejecting the Orion Switch after it was offered again to him.
- Embarrassing Nickname: Hayami always calls her "My little pup" (Koinu-chan in Japanese), referring to her past as the Canis Minor Zodiarts, who has surpassed her Last One phase to become a Horoscopes.
- Extremity Extremist: Doesn't rely on its hands at all during combat, preferring either its legs or Stinger Tail. She eventually becomes somewhat of a Bare-Fisted Monk, whatwith more common usage of the hands, and especially her legs, in combat.
- Fate Worse than Death: She gets imprisoned within the Dark Nebula as punishment for screwing up her last chance.
- Four Is Death: Got her ass beaten by Gentaro in #14 and got sent to the Dark Nebula in #18, four episodes later.
- Hot Teacher: On the surface.
- Important Hair Accessory: Her hair decorations are hardly appropriate for a high school teacher, but it turns out to be a mask for her being Scorpion.
- Irony: If "The Melancholy of Sarina Sonoda" segment of the Net Movies are anything to go by, Sonoda had considered giving Yuki a Zodiarts Switch but deciding against it since Yuki had no real problems. Had Sonoda gave Yuki a Switch, regardless of if she was troubled or not, there was a good possibility that Yuki would have evolved into Gemini, saving her from being banished to the Dark Nebula.
- It's Personal: Seems to be her preference as to whom he hands out Zodiarts Switches. Which is in line with both myths of Scorpius, where the Scorpion was sent to kill Orion due to a god (Apollo in one and Gaea in another) being offended by him. Sonoda herself grows a grudge against Fourze for constantly ruining her plans. It leads to her defeat, as she becomes so fixated on killing him she doesn't even consider taking a Villain: Exit, Stage Left as she'd done many times before.
- Jack of All Stats: Great at attacking with its bare fists and feet and pretty much sends Fourze flying in almost every battle they have.
- A Lighter Shade of Black: Sonoda seems to be among the nicest faculty members in Amanogawa before it's revealed to just be a facade, yet she's more generous towards Hayami when compared to how other Horoscope members treat the latter.
- Meaningful Name: The syllables in her name can be rearranged to form "Sasori na no da" or "I am the scorpion."
- Mirror Character: The novel reveals that when she was a child, she had an obsession with space and wanted to be an astronaut, just like Yuki.
- Nice Job Fixing It, Villain: When you think about it, it's her preference for choosing Zodiarts that the Kamen Rider Club was formed in the first place.
- One-Winged Angel: Transforms her bottom half of her body into a giant scorpion form called Scorpion Nova in Episode 14. From what Gamou says, all 12 Horoscopes have the ability to become this.
- Put on a Bus: Hayami's official explanation was that Sonoda-sensei had to take sick leave, when actually she was trapped into the Dark Nebula for screwing her last chance to defeat Fourze and Meteor.
- Reasonable Authority Figure: In contrast to Ohsugi, which is, again, on the surface.
- Scorpion People: She gains a One-Winged Angel form that transforms it into a giant with a humanoid top and a bottom with a scorpion's legs and stinger.
- Sensei-chan: Gentaro even refers to her as "Sono-chan-sensei", despite her gently reminding him "It's 'Sonoda-sensei'."
- The Smurfette Principle: Sonoda is the sole female of the original Horoscopes.
- Starter Villain: Is the first of the Horoscopes to show up and Fourze's first real challenge, but was beaten without even a Midseason Upgrade, and was considered in universe to be incompetent picking Switchers.
- Superpower Lottery: Inverted. While the other Horoscopes have powers along the lines of invulnerable armor, the ability to steal souls, and the capacity to warp spacetime, having a poisonous tail really fails to measure up. Heck, she could probably have been beaten by one of the higher-end standard Zodiarts, like Dragon or Musca.
- This Cannot Be!: Her reaction to Fourze managing to defeat her despite having already gone One-Winged Angel.
- Undying Loyalty: Not to Tatsugami's extent, but Sonoda is wholly devoted to Gamou's cause and lives to meet his expectations.
- Villain: Exit, Stage Left: Tends to do this when Fourze is coming close to victory until #14, when her growing grudge against Fourze for being too much of a Spanner in the Works gets in the way of her common sense.
- Villain Forgot to Level Grind: Her problem wasn't getting weaker, but Fourze was getting stronger and she wasn't. She had to be given her One-Winged Angel form by Gamou, as opposed to all the other Horoscopes who got theirs without help.
- Villainous Breakdown: Develops one in #13, having grown tired of the Kamen Rider Club's interference. Really loses it when Miura rejects the Orion Switch, not only trying to kill him, but going pretty much berserk, gunning for Gentaro's head.
- Villainous BSoD: In the novel, after being released from the M-Bus, she takes the fact that the Horoscopes have been defeated and killed poorly, retreating to her parents’ house to regain her bearings, before going straight at a rocket station.
- With My Hands Tied: Maybe not on purpose, but she doesn't even bother using her hands in its first fight with Gentaro.
- Woman Scorned: Becomes this when her Switch was taken away after Fourze defeats her, vowing to work her way back up the ranks of the Horoscopes. However, even when she does get it, she fails.
- You Have Outlived Your Usefulness: Double Subverted. For falling to Fourze even after going One-Winged Angel, Gamou confiscates her Switch and passes the duty of passing Switches to Hayami for the time being. Then in #18 after she pleads for her Switch back but is easily defeated by Meteor, Sonoda gets imprisoned in the Dark Nebula by Virgo as punishment.
Kouhei Hayami/Libra Zodiarts
Kouhei Hayami/Libra Zodiarts
Portrayed by: Kousei Amano
- The Ace: He's got a Ph.D in physics, is so popular-and gorgeous-in the eyes of the School Faculty, the students and their mothers, and is just plain charismatic. Of course, that's not all he is.
- The Bad Guy Wins: Succeeded in destroying the four stations in Kyoto and closing its Hole, which was the mission he was sent on, despite being defeated by Fourze. On top of this, he achieves his Supernova in the process.
- Bait-and-Switch: Hayami's debut in #13 hints heavily that he is the Scorpion Zodiarts, as he has the same speech patterns and body language. He's not, but he is the Libra Zodiarts.
- Bare-Fisted Monk: It should be noted that he seldom actually uses that staff when he fights in one of his disguises.
- Badass Bookworm: According to
Word of God, cut scenes from #45 were going to depict him as this. Before becoming a Zodiarts, he was an astrophysics student, whom at some point met Gamou and joined the Zodiarts. - Butt-Monkey: It appears that many of the other Horoscopes do not respect him as much as Sonoda.
- Character Tics: Tends to use words relating to weight, such as "heavy" and "light". Yet another hint that he's Libra.
- The Dog Bites Back: Has been threatened with banishment to the Dark Nebula quite a few times and was nearly put there at one point. It sort of feels like this when he and Tatsugami killed Emoto. Though this is more The Dog Barks Back, since he had Tatsugami do all the work, then proceed to mock Emoto after death.
- Dragon with an Agenda: Mentions how he wants Sugiura for his own, undisclosed-as-of-yet plans. Nothing came out of this.
- Dropped a Bridge on Him: After taking a hit meant for Gamou, he gets pelted through the Horoscopes switches-derived portal before it's disrupted and closed off for good. To make things worse, if you pay enough attention, as he's drifting away, you can see Libra get vaporized by a bolt of lightning. He's not trapped in the Dark Nebula or hurtling through space. Libra is flat-out dead.
- Enemy Mine: He became an unofficial member of the Kamen Rider Club after he sees an You Have Outlived Your Usefulness coming from a mile away. It turns out that he was just faking though.
- Evil Genius: Hayami's role amongst the Horoscopes. He is more manipulative and cunning than his comrades, and has found himself in the role of distributing Zodiarts as part of Gamou's master plan.
- Evil Mentor: How he goes about dealing with his prospect Zodiarts and Sonoda. The Zodiarts he "mentors" even refer to him as "Master Libra".
- Fake Defector: Hayami's tearful remorse for what he did to the heroes and the rest of the school and defection were nothing more than a facade and as part of his plan to awaken Ran's abilities as Pisces and to finalize Gamou's plans, even ruthlessly stating to Gentaro that he and the rest of the school were nothing more than Gamou's pawns.
- Faux Affably Evil: Hayami acts as a charming, composed principal of AGHS, yet comes of as cunning and manipulative, let alone being somewhat vindictive with anything displeases him.
- The Force Is Strong with This One: His supernova form allows him to detect those with the potential to become Horoscopes. What's more, he seems to be able to force them past the Last One stage in favor of becoming Horoscopes immediately.
- Foreshadowing: in #37, he expresses sentiments that the astronaut exam would be a good way to spot potential Horoscopes. He got his wish at the end of #38, finding Taurus among the finalists.
- Heel Realization: After all of his actions, he finally admitted it. Subverted in that he was a Fake Defector.
- Hot Principal: Not only do the female students find him attractive, but so do the mothers of various students. Thus he immediately catches the attention of Sonoda, and the jealousy of Ohsugi. Just like with Sonoda, this is just a farce.
- Karmic Death: After he revealed his deception to the Club, Hayami expressed to Gentaro of having zero remorse for ruining students' lives while claiming that Gamou understood him. Including with how much he feared in ending up in the Dark Nebula, Hayami shielding Gamou from Fourze resulted in him being vaporized by lightning from the actual Dark Nebula and Gamou denouncing his sacrifice. Not that it stopped the heroes from being shocked at his sacrifice.
- Kick the Dog: In #43, alongside Tatsugami, he forced Yuki to push a switch to awaken her potential as the Gemini Zodiarts.
- Kick The Son Of A Bitch: Tricking Virgo into sending Kijima to the Dark Nebula. While he was doing it for his own interests, there's little doubt Kijima deserved it. Later on, he watched Tatsugami killed Emoto, though by that point, he too perhaps had it coming.
- Killed Off for Real: He meets his end in #46 when knocked into the Dark Nebula by Fourze, after which he's struck by lightning and killed.
- Knight of Cerebus: Right after Makise is dispatched, this guy sealed the deal on the Cerebus Syndrome.
- Locked Out of the Loop: He didn't have a clue regarding Virgo's identity as Emoto up until #41.
- Manipulative Bastard: A charming principal who proves to be quite the cunning individual, especially when staging Kijima into the Dark Nebula and his act towards the Kamen Rider Club.
- Master of Illusion: He possesses several illusory powers, most notably the ability to make itself and others look like other people. At one point he even fights Fourze while disguised as a second Fourze.
- Master of None: He doesn't have a lot of fighting capability and his illusion powers are only good for distraction.
- Meaningful Name: His given name (Kouhei) means "fairness", which is in line with his balance motif.
- My God, What Have I Done?: He has this moment when he realizes just how many people's lives he ruined by giving out all of the astroswitches. Subverted in the end, as he turns out to be a Fake Defector.
- Nominal Hero: After his alleged Heel–Face Turn. He's the first to admit he is only siding with Fourze to save his own skin, but he will protect Ran at any cost, even if he has to take on Tatsugami without a switch.
- Perpetual Smiler: He carries a smile on his face at all times. This lapses into Dissonant Serenity when he shows his true colors as a Manipulative Bastard.
- Pragmatic Villainy: He really takes his role as a mentor to prospective Zodiarts seriously, but, of course, this only ties into the Horoscopes' goal of completing their roster. His abhorrence towards Kijima also counts, since he believes the latter to be too much of a loose cannon anyway.
- Red Oni, Blue Oni: The blue to Kijima and Yamada's red.
- Shock and Awe: Can deliver a blast of electricity from his forehead. Said electricity is even able to brainwash Zodiarts, as seen with Perseus.
- Smug Snake: It's becoming clear that he gives himself too much credit for being "Master Libra" and thinks he's more important within the Horoscopes than he really is. Overlaps with his frustrations that he's turning into The Un-Favourite, while Gamou gives Kijima more leniency. He starts to become even more smug after obtaining the Eye of Laplace, not hesitating to brag about it in Tatsugami's face.
- Taking the Bullet: Just when Fourze had the chance to finish off Sagittarius, Libra jumps in the way and takes a Limit Break to the chest in his place.
- Villain: Exit, Stage Left: Is able to teleport, leaving behind a blue nebula like light when he does so.
- Villainous Breakdown: When he realizes that he's next on the You Have Failed Me chopping block, he doesn't take it well and instead begs like a dog to be spared. This triggers his Supernova transformation, allowing him to perceive who is or can become a Horoscope, an ability that causes Gamou to (understandably) spare him.
- You Have Outlived Your Usefulness: He sees this coming from a mile away, and defects before the statement can be uttered.
Kuniteru Emoto/Virgo Zodiarts
Kuniteru Emoto/Virgo Zodiarts
Portrayed by: Hajime Kanzaki (live), Rie Tanaka (voice, Virgo Zodiarts)
- The Atoner: Emoto actually wanted to make up for abandoning Rokuro to his death years back.
- Bitch in Sheep's Clothing: He's worse than Sonoda in this regard: Sonoda just stung people with poison, Virgo threatens to take people into the Dark Nebula! However, it turns out to be inverted, as he's actually a Double Agent.
- Broken Pedestal: As Tomoko puts it:spoiler:"I couldn't believe you're such a bad person!"
- Cast as a Mask: Rie Tanaka only features as Virgo's voice in Zodiarts form.
- The Dragon: While at first Sonoda and then Hayami served this role directly, Hayami's description of her implied that he's closer to this role than the first two. It also helps that Emoto was a huge part of Gamou's life even before the latter met Tatsugami.
- Dragon with an Agenda: Gamou didn't seem to know Virgo's other identity as Tachibana. For starters, he only learned of the latter's existence until the end of Aries' arc.
- Early-Bird Cameo: Rather like Meteor, he appears in Movie Wars Megamax before debuting at the end of #18.
- Freudian Excuse: Virgo's abhorrence towards Gentaro's praise of friendship is stemmed from how Emoto's own friendships with Gamou and Kengo's father imploded.
- Good All Along: Turns out he was staging a plan to make Gamou vulnerable when he got what he wanted while he was working with him, as a way to make it up to Rokuro and to help the Kamen Rider Club.
- Green-Eyed Monster: Emoto killed Rokuro because, as he states, he wanted to be the "Earth" rather than the "Moon."
- Killed Off for Real: He's killed by Tatsugami for betraying the Horoscopes, making him the first Zodiarts to actually die.
- Meaningful Name: Emoto backwards is otome, which means "maiden", one of the interpretations of the constellation Virgo.
- My God, What Have I Done?: Emoto came to sincerely regret killing Rokuro. His perspective on the moment shows Emoto's face quickly turn to one that screams this trope before he even made his way to the escape ship.
- Pocket Dimension: The Dark Nebula, Which is really just a section of M-BUS.
- Power Gives You Wings: As Virgo, Emoto has wings he can use as flight when in combat.
- Power Levels: He states in #32 that Fourze's Cosmic States makes him almost equal to him in strength.
- Power of the Void: In her tussle with Meteor in #22, she fired spheres of energy that would have possibly killed Meteor had he not moved. Why? Because one kind of energy sphere Virgo can fire are black holes.
- Pragmatic Villainy: He objects to letting Taurus control and brainwash the school because individuality is kind of necessary for kids to want to use switches.
- Redemption Equals Death: Upon revealing his colors to the Club and getting wounded by Gamou, Emoto spends his last moments inconspicuously giving Kengo information as he got struck by Tatsugami no long after, while dying knowing that he made friends in the end.
- Redemption in the Rain: How his last moments ended up as.
- The Reveal: His identity is quite well-hidden for most of the series, with only Gamou and Tatsugami being aware of it even within the Horoscopes. Also, the series' opening scene with Kengo's father fighting against a red-eyed astronaut? It wasn't Gamou, it was this guy.
- And another reveal happened AGAIN in the very next episode, where he is Tachibana, the one who made Kamen Rider Meteor.
- Samus Is a Girl: An inversion. Virgo's true identity is none other than Kuniteru Emoto, aka Tachibana, a male character who transformed into a female-themed monster.
- The Smurfette Principle: Notably averted. While it may seem that Virgo is the only major member of the Horoscopes that's clearly female, his identity as Emoto showed otherwise.
- Sphere of Destruction: What he used as a threat to Miu, which would have hit Jun had it not been a warning shot.
- Stone Wall: Prefers to utilize a very defensive fighting style, and can use her wings as a shield. Even her staff projects an invisible forcefield. Unless she taps into the power of Movie Wars Megamax's budget, whereupon CGI wings and Wire Fu turn her into an outright Lightning Bruiser.
- Thinking Up Portals: Has the ability to create portals into space, much like Fourze's Cosmic States, as well as teleport people into the Dark Nebula.
- Two Alias One Character: Kunitero Emoto is 1) an old friend of Rokuro Utahoshi, 2) Virgo Zodiacts, 3) Tachibana and 4) the one who killed Rokuro Utahoshi.
- Unsettling Gender-Reveal: What with the way Virgo looks, you'd think Virgo would've been a female behind the monster form. He isn't.
- Walking Spoiler: You can't say anything about Emoto except he knew Kengo's father without getting one spoiler out in the open.
Natsuji Kijima/Cancer Zodiarts
Natsuji Kijima/Pegasus Zodiarts/Cancer Zodiarts
Portrayed by: Soran Tamoto
- Absurdly Sharp Blade: His open claw is even capable of cutting through Fourze's shield, which is made of a super-durable metal called Astorium.
- And I Must Scream: Hayami and Virgo handle his punishment — Hayami transforms him into the policeman that hounded Gamou in #27 and then tricks Virgo into sending him into the Dark Nebula, with his fan left behind.
- Beneath the Mask: A very jolly fellow who sprinkles Purple Prose rakugo phrases and puns into his normal speech. After he is uncovered as Pegasus, he drops the flowery speech and becomes sinister and cold.
- Character Tics: Clops his feet like a horse when about to throw a high kick. Kijima only did this in order to incriminate Haruka Utsugi, and drops it once he is uncovered. After evolving into Cancer, he's more often seen tapping that fan of his in time with the dialogue.
- Deadly Game: How he hands out Zodiarts Switches. He calls it "Open Mic From Hell". You make him laugh? Congratulations, you get a Zodiarts Switch! You fail? Say goodbye to your soul.
- Disproportionate Retribution: Part of the reason why he framed Haruka Utsugi was because she took away his fan when he accidentally hit her with it, though he admits he would've done it to someone anyway and that was just why he did it the way he did.
- Faux Affably Evil: The fact he's polite and cheery just makes him more disturbing.
- For the Evulz: How he approaches students with Switches. He basically asks if they want to have fun. Made even worse in #27: He takes a couple of athletes' souls away because none of them could make him laugh. And those that could were given a Zodiarts Switch instead!
- Fireballs: One of his abilities.
- Frameup: Tries to frame Utsugi by mimicking her fighting style, dropping some evidence and telling the KRC that she took it from him, and outright saying "Do you really want to hit your teacher?" when Gentaro fights him in #21.
- From Nobody to Nightmare: Found his switch by complete accident (rather than being selected by the Horoscopes) and still manages to be the first Monster of the Week to evolve into a full blown Horoscope.
- Giant Enemy Crab: Moreso when Supernova form kicks in #27.
- Ham-to-Ham Combat: One-sided, actually. During his fight with Meteor in #27, he would not shut up.
- Hoist by His Own Petard:
- He would free the souls of the KRC he imprisoned should one make him laugh. Ryusei engages him in battle and the sight is so hilarious to Kijima that he laughs... which is what Ryusei wanted him to do.
- Another thing that really bites him in the ass was keeping the identity to Meteor to himself. If he had explained it to Gamou instead of promising to tell it later, he'd probably would still be a Zodiarts. Not that Hayami was gonna give Kijima a chance anyways.
- Irony: Cancer was supposed to pinch at the toes of Hercules while Hercules battled the Hydra. Hercules squashed him pretty easily. Here, Cancer's been really hard to destroy due to his powerful armor and the fact that he runs away just before Gentaro puts the finishing blow on him.
- Kill It with Fire: Thus far the only thing capable of damaging him. Until #28, that is.
- Laughably Evil: Seems to be an intentional tactic of his to get under his opponents skin and confuse them. Makes him even more disturbing when he does stuff like steal people's souls.
- Lightning Bruiser: Fast, strong and takes most hits without a scratch on his shell.
- Making a Splash: Another of his abilities.
- Meaningful Name: The kanji of his given name can be read as "kani" (Japanese for "crab") based on the on'yomi pronunciation. His Horoscopes name of Cancer can also refer to the sickness which is a result of rapid uncontrolled growth, which Kijima's constant acquisition of new powers certainly resembles.
- New Powers as the Plot Demands: In a twist on things, Played for Drama. As Cancer, Kijima develops powers abnormally fast. Initially his destructive power is limited to close range only for him to develop a beam version of his claw. He gains the ability to form a spray of bubbles he can use to hide himself or escape from enemies out of nowhere and during his final arc he even gains the power to tear out and clip people's souls and then develops Supernova without any help from Gamou. It's noted by other Horoscopes and his boss however that he's developing too much and too fast, as shown when his first transformation into Cancer Nova nearly kills him.
- One-Winged Angel: Not only does he evolve into Cancer near the end of #22, but eventually also Cancer Nova at the end of #27. Worse? He managed to reach it without help!
- Pet the Dog: In the Fourze novel, Kijima helps Ryusei and Tomoko get tickets to go to the senior prom together with their friends, which they otherwise wouldn't be able to do (Tomoko isn't in senior year and Ryusei has returned to his original school.)
- Psycho for Hire: Unlike the other Horoscopes who seem to be Well Intentioned Extremists, Kijima is just a jackass who enjoys what he does.
- Pungeon Master: A member of the school's Rakugo
Club, he often mixes puns and wordplay into his speech. Especially obvious in #27, when he spends a couple of minutes during his fight with Meteor making puns about fish and tadpoles, to Meteor's growing annoyance. - Red Oni, Blue Oni: The red to Hayami's blue. (One of two)
- Sixth Ranger: His role amongst the Horoscopes. The first to surpass Last One and become a Horoscopes since Sonoda, he was also responsible for dishing out The Worf Effect for a good while before his enemies one-upped him.
- Shadow Archetype: Kijima is one to Ryusei, which the former lampshades in #27. Both are liars, hiding a secret from everyone. At first, Kijima was hiding his identity as Pegasus, though he did drop that act when he became Horoscopes. Ryusei, meanwhile, has been hiding his identity as Meteor. The parallels between the two of them are drawn constantly, with Ryusei even being the one to discover Kijima's identity as a Zodiarts, and Kijima being the first person to learn of Ryusei's secret identity.
- Super-Toughness: And how! He's basically immune to everything that Fourze can throw at him, except for prolonged exposure to fire and Kamen Rider Meteor's Finishing Move.
- We Can Rule Together: Kijima made that offer to Ryusei in exchange for keeping mum about his secret identity.
- Xanatos Gambit: His way of handing out Zodiarts Switches. They make him laugh? He hands out a Switch and a Zodiarts is let loose, continuing his mission. They don't? He gets their soul and becomes more powerful.
- You Fight Like a Cow: Mostly in his battle against Meteor.
- Your Soul Is Mine!: Type A. In #27, he was able to collect souls that look like rings and then snip them with his pincer, sending their owners into comas in the process. And he does it on the Kamen Rider Club in #28, almost snipping off Tomoko's had Ryusei not come in in time.
Tatsumori Yamada/Aries Zodiarts
Tatsumori Yamada/Aries Zodiarts
Portrayed by: Kazuma Kawahara
- Astonishingly Appropriate Appearance: Well of course the Zodiarts that controls sleep would be the one that's a sheep.
- Chekhov's Gunman: He was actually name-dropped in #17, 14 episodes before he made his debut.
- Convenient Coma: He can induce this upon anyone else. Ironically, he's now in one of these.
- Deal with the Devil: He gave one of these to Ryusei to save Jiro, in the cost of killing Fourze. He then paid his end of the bargain and revived Jiro.
- Death by Irony: Almost. He's last seen lying comatose in hospital after losing his Switch.
- The Dreaded: Among Subaruboshi students.
- Early-Bird Cameo: In #30, after Meteor's brief altercation with Libra at Subaroboshi, someone in an Amanogawa uniform ominously walks past.
- Foil: He's an amoral AGHS student who uses his Zodiarts Switch to torment others For the Evulz and is actively opposing Hayami — just like Kijima. Unlike Kijima, Yamada isn't loyal to Gamou nor has at least a tiny bit of devotion to the Horoscopes' cause.
- Hidden Depths: Bastard that he is, it's still worth mentioning that he doesn't back out of his arrangement with Ryusei. Mind you, it goes horribly wrong, but he did heal Jiro. Granted we never found out why so it could be Pragmatic Villainy.
- Irony: Ryusei transfers to Amanogawa in search for Aries, except that Aries was the student who transferred to Subaruboshi in his place.
- Killer Rabbit: Tatsumori supposedly transcended from Lepus.
- Karmic Death: After being defeated by Fourze, he is shown in the hospital in a coma, just like he did to his victims.
- Meaningful Name: The kanji in his name mean "dragon" and "guard/protect." In Greek mythology, Aries was a sacred golden ram whose fleece was guarded by a dragon.
- Monster of the Week: The other Horoscopes are dangerous, long-term threats; Yamada, on the other hand, is essentially this, with some backstory relevance for Ryusei.
- New Transfer Student: To Subaruboshi High.
- Power-Up Letdown: He attempts to use Supernova against Fourze Cosmic States, but since he hasn't earned it himself or been granted it by Gamou, all that happens is his horns get bigger and removes the cape.
- Prima Donna Director: With his power over Subaruboshi, he forces all the students and teachers to act in the plays he writes and knocks out everyone who he feels isn't up to snuff. The KRC's general reaction to his scripts is "Who Writes This Crap?!", and he's shown to be lousy at casting too (he turns the Judo Club into the Space Club, and when he criticizes a teacher's English she protests that she teaches gym).
- Red Baron: He's known as the "Apostle of Sleep".
- Red Oni, Blue Oni: The red to Hayami's Blue. (One of two)
- Remember the New Guy?: Flashbacks to the first episode show that he was there even though he's only actually introduced much later. He was also mentioned in #17 (Ryusei's debut) when both Gentaro and Sonoda note that Yamada was gone.
- Shock and Awe: Emits electricity from his horn to paralyze people. Though, it's only use in the Net Movie so it might not be canon in the show.
- Sixth Ranger Traitor: His role amongst the Zodiarts, though him mouthing off to Hayami and deciding to do whatever he feels like could be considered as him "betraying" Hayami.
- The Sociopath: What his time at Subaruboshi and evolving into Aries turned him into: A tyrant who forces everyone else in the school to go along with his plays against their will let alone any lack of consideration for them and places those who defy him into a deep sleep.
- Squishy Wizard: His staff is pretty much his only means of one-upping his opponents. Once Fourze got Cosmic States, his advantages were completely lost.
- Status Effects: Has the power to put anyone he touches with his staff to sleep or shut down the use of the Astroswitches temporarily.
- Tyrant Takes the Helm: He took over Subaruboshi with an iron fist.
Kou Tatsugami/Leo Zodiarts
Kou Tatsugami/Leo Zodiarts
Portrayed by: Kazutoshi Yokoyama
- All Your Powers Combined: He has been entrusted the Switches of past Horoscopes by Gamou for safe-keeping. He can use them to take the forms of past Horoscopes like Aries, Aquarius, Cancer, Capricorn, and even Virgo.
- Berserk Button: He flipped after Gentaro approached Gamou without a regard for the latter's position. Gamou even held him back to make him keep his cool, but that didn't stop Tatsugami from delivering a No-Holds-Barred Beatdown to Fourze unprovoked later that night.
- The Brute: Tatsugami's role in the Horoscopes, not only as one of the more physically stronger members, but also with his agressive personality and ability to use other Horoscopes Switches as well.
- The Cast Show Off: Kazutoshi Yokoyama was originally a stuntman for JAC, the stunt group for most Kamen Rider series. As such, he has some amazing untransformed fighting scenes, prime example would be his fight against Ryusei in #47.
- Character Tics: Manipulates walnuts in his hands, similar to Baoding Balls.
- Composite Character: A lion-motif major villain who uses the powers from his comrades to fight the heroes and is associated with the Big Bad. Not only is this remotely similar with Kazari, but Tatsugami also has some of Uva's anger issues as well as Gamel's massive strength and severe devotion to the one person he cares about.
- Dark and Troubled Past: It is revealed in #47 that Tatsugami was nothing more than an ally-way brawler drunk on the power of his fighting prowess. It all changes when Gamou presents him with a Zodiarts switch.
- Deadly Upgrade: He shows this trait far more than any other Zodiarts bar Gamou himself. His Cosmic Energy induced forced evolution has pushed him so far that he literally cannot survive without Cosmic Energy. By the finale, it's gotten to the point where being forced out of his Leo Zodiarts form actually kills him.
- Death Glare: Either towards Hayami or any of the heroes.
- Dragon Their Feet: We've seen Fourze gain five powerups, three Horoscopes have been lost (though they assume that they could just get two of them back from the "Dark Nebula"), and this guy didn't act in any fashion. Justified with his role as Gamou's bodyguard, instead of handing out Switches like Sonoda, Hayami, and Kijima, an executioner like Virgo, or just fooling around like Yamada.
- Dragon with an Agenda: Tatsugami hints at looking for a McGuffin called the "Core Switch", and mentions that it will surprise even Gamou, indicating that the latter has no idea. Though unlike most cases of this, he is completely loyal to the Big Bad, and was apparently just trying to help further Gamou's plans.
- Dumb Muscle: Even if he managed to help Hayami's plan to get Picses, he's not usually assigned to recruit Zodiarts because his general M.O. is "just press the switch already!"
- Early-Bird Cameo: He can be sighted in group shots of the four initial Horoscopes and during scenes where they're all together long before he's even given a single line or any plot relevance.
- Evil Counterpart: Could serve as this to either of the Kamen Riders, really. Like Gentaro, he is devoted to helping his friend (Though it does border on an unhealthy obsession at times), and like Ryusei he holds a great amount of martial arts expertise. Also like the Kamen Riders, he can change out what Switch he's using to gain new powers.
- The Juggernaut: Thus far has been pretty much unstoppable to everything thrown at him, including both Fourze Cosmic States and Meteor Storm, and having the power to go with it. In human form he can withstand the one-inch punch. You know, that same punch that killed Gentaro?
- Kick the Dog: In #43, alongside Hayami, he forced Yuki to push a switch to awaken her potential as the Gemini Zodiarts.
- Killed Off for Real: Courtesy of Meteor Storm.
- Meaningful Name: His family name sounds similar to tategami, meaning "mane", while the kanji used for his first name means "roar."
- Mighty Glacier: Tall, slow and powerful. He can pummel both Cosmic States Fourze and Meteor Storm without breaking a sweat!
- More Teeth than the Osmond Family: Part of the Leo Zodiarts form is a mouth full of fangs that take up roughly a third of his face.
- No-Holds-Barred Beatdown: see Berserk Button; Gentaro had little margin to transform, let alone defend himself from the assault!
- Not So Above It All: When he arrives at the Rabbit Hutch to wreck the place, he lets out an almost playful "Gao!" before transforming. Given he's giving a sadistic Slasher Smile to the KRC at this point however, it's more him playing with his prey than an actual endearing trait.
- Super-Scream: Has a powerful roar that can cause shockwaves.
- Undying Loyalty: In general, Tatsugami is present as the most loyal Horoscopes to Gamou. Gamou orders him to do something? Tatsugami unquestionably complies. His boss gets touched, even when it's without any offense whatsoever? Tatsugami beats the person/people almost either immediately or later. Finding out that a fellow Horoscopes went against the "great man"? Tatsugami makes sure that he kills that individual. It has ultimately gotten to the point to where Tatsugami wouldn't mind being sacrificed for his master's ultimate goal of meeting the Presenters.
- Wolverine Claws: Can turn his forearms into a spectacularly large set.
- You Have Failed Me: Told Hayami that should he fail the Kyoto mission, it will also be his last.
Tojiro Goto/Capricorn Zodiarts
Tojiro Goto/Capricorn Zodiarts
Portrayed by: Ryousuke Kawamura
- Anime Hair: His is all spiked up.
- Anti-Villain: Type IV. He's much less malevolent than most of the other Horoscopes before him, and really just wants to play music rather than hurt anyone. He initially only fights because Fourze attacks him first.
- Cut Lex Luthor a Check: He becomes Capricorn so he can further his music career.
- Dreadful Musician: In human form, but not in Zodiarts form.
- Foreshadowing: He was tasked by Gamou to find the Core Switch, and his powers apparently resonate with it. And there's one student who was most affected by said power...
- Laser-Guided Amnesia: After being defeated by Fourze, his memory was wiped by Virgo.
- Magic Music: Can create Music Staffs to entrap his opponent, or entrance them.
- Meaningful Name: "Goto" sounds like the Japanese pronunciation of "goat".
- Monster of the Week: Capricorn was treated similarly to Aries. Instead of being a general like Leo, Libra, and Virgo, he was just a Monster of the Week with backstory relevance for JK.
- Shout-Out Theme Naming: His name is turned into his old nickname by shortening further till it's read roughly like GOD, antagonist organisation to Kamen Rider X — which JK was named for.
- Squishy Wizard: Like Aries above, he only uses his guitar as a means of attacking. Once Fourze ensnared him with his own music, he was done for.
- Spoony Bard: His Multi-Stringed Koto Uruk which is only used to blast a Musical Staff to ensnare his opponent. He doesn't use the music to brainwash his opponents (Ryusei notes that both he and Gentaro are immune to his song due to being shielded by Cosmic Energy) nor actually use it to his advantage (say, make the rave zombies to shield him so that the Riders can't touch him), and once Cosmic States captured the music he played, he had nothing left in his arsenal. It's this even outside of battle; when he plays his guitar the power of the Zodiarts Switches intensify. Moreover, the only reason he gets the power of Supernova was so that he can use it to see whether or not Gamou can sense the power of the legendary Core Switch.
- We Used to Be Friends: With JK. The end of #36 shows that they're hanging out again though.
- Villainous Breakdown: After seeing Gentaro both steal the show and turn JK against him, he really loses it. Though this may have something to do with the Supernova energy Gamou put in him.
Erin Suda/Aquarius Zodiarts
Erin Suda/Aquarius Zodiarts
Portrayed by: Karen Takizawa
- The Ace: Transfer student from America who is smart, athletic and super-hot as JK puts it. This is even lampshaded with the letter A on her chest in regards with the exam.
- Anti-Villain: Another Type IV. Her first order of business as a Zodiarts was to heal Kengo, and she's only hostile to Gentaro because of his friendship with Yuki. After learning what really happened with the robot test, she does the Secret Handshake with Yuki and asks for a battle with Fourze. She then thanks Gentaro before Virgo retrieves her and erases her memory.
- Book Ends: Her last scene shows her "first" meeting with Gentaro and Yuki in front of the JAXA monument, just like when she was first introduced.
- Borrowed Catchphrase: Another to put her own spin on Gentaro's “Uchuu Kita!/It's Space Time!”.
- Death Glare: Has this down to a fine art.
- Expy: Let's see. Serious Business about something? Check. Hates Genki Girl Yuki but doesn't have qualms with anyone else? Check. Has a Pet the Dog moment despite being a Zodiarts? Definitely. Gets talked to by Gentaro and immediately has a My God, What Have I Done? moment shortly thereafter? Yep. Said My God, What Have I Done? moment coincides with something in relation to Yuki Jojima? Uh-huh. She's pretty much the Horoscopes version of Motoyama (Perseus).
- Foil: To Yuki. Where Yuki is hyperactive, loud and energetic, Erin is calm, quiet and still. Where Yuki believes in praying to the "Rocket Gods" and miracles, Erin believes in using skill to get what a person wants. Where Yuki tries to lift everyone spirits by being goofy, Erin tries to shut it down by being reasonable.
- Green-Eyed Monster: To make a long story short, she despises Yuki Jojima. More specifically, she hates Yuki Jojima due to the resemblance of a person who took her father's spot in going into space.
- Hair-Trigger Temper: Anything that comes out of Yuki's mouth makes her panic and crazy; she goes overboard when she assumes Yuki hid the camera parts for the team's robot to make her look bad—the keyword being "assumes".
- Healing Factor: Her water jugs on her shoulders can heal anything...even a Cosmic States Limit Break!
- Hot-Blooded: Slightly Deconstructed. She's clearly grouchy but reasonable, right up until she thinks Yuki cheated her to make herself look better. She laser focuses in on the perceived slight, angrily arguing with the proctors about their decision without stopping to think about why they made that decision and it leads to her rashly shoving Yuki down a hill in her Zodiarts form. It also leads to her regretting her actions once the truth comes out.
- I Gave My Word: She made a promise to Gentaro that she'd give a fair fight to Yuki during the exams.
- Laser-Guided Amnesia: Just like Goto prior, she has this too. However, the ending of #38 ends on a positive note with her excitably interacting with Gentaro and Yuki.
- Making a Splash: Except her water gimmick acts as a Healing Factor, and she attacks with that nasty cat-o-nine-tails thingy.
- Malaproper: She has a hard time pronouncing some Japanese sayings, such as proclaiming that she is "filthy" instead of "flawless" in Zodiarts formnote ; that's how Gentaro figured out Erin was Aquarius. It even goes to the point that the Zodiarts have to correct her pronunciation. Justified in that she is foreigner and Japanese is damn hard to learn as a second language.
- Meaningful Name: Her name is an anagram of Eridanus, a mythical Greek river that is somewhat associated with Aquarius.
- Mirror Character: Even though she won't admit it, she is actually similar to Yuki. Both wish to go to space, and both are determined to do the best of their abilities. It just emphasizes that their ways of leading (where Erin immediately takes charge and tells them what to do and Yuki just suggests something and presses on knowing that people will despise her for doing so) that are huge contrasts.
- Monster of the Week: Just like Capricorn and Aries.
- My God, What Have I Done?: Gentaro explains to Erin that Yuki did hide the camera parts because what she found in the box were instructions for the robot the team had to make. It was a Secret Test of Character to see what the team could do under circumstances, and Yuki created that cat to make up for the loss. Gentaro notes that by being the leader, Yuki would be downright hated by everyone else, but she was willing to do so for the sake of the team. And when Erin returns after pushing Yuki off of the hill, Yuki states that she should leave the girl behind and save herself. Damn.
- Pet the Dog:
- The first thing she does as Aquarius? Use the water from her healing jugs to heal Kengo. Unfortunately, not only does it NOT take, but in #45 Kengo relapses worse than before.
- Despite being cold to Yuki, she also praises at how Gentaro and Kengo have the potential to become astronauts.
- Poor Communication Kills: Because she was so angry at Yuki, she never got a chance to ask why Yuki hid the camera parts until Gentaro revealed that it was all a Secret Test of Character.
- Serious Business: Going into space and passing the mock space exam is very important to her, since her father never had a chance to go. Thus while she is nice to Gentaro and Kengo, she utterly despises Yuki because she doesn't believe the Genki Girl is taking the whole thing seriously.
- Spell My Name With An S: In Japanese, it's spelled as エリーヌ (long i sound, ends with nu), rather than the usual エリン (short i sound, ends with n).
- Stone Wall: That Healing Factor of hers makes it near impossible for her to be defeated. But if you can destroy both the water jars on her shoulders at once (even one jar is enough to heal the other), she's done for.
- Visual Pun: Aquarius is the water carrier. So naturally, she's got a great big pair of jugs, as in the jugs on her shoulders.
- Worthy Opponent: Considers Kengo and Gentaro these in the astronomy exam. Yuki, on the other hand, is the exact opposite.
Yuta Sugiura/Taurus Zodiarts
Yuta Sugiura/Taurus Zodiarts
Portrayed by: Kenta Itogi
- The Ace: In addition to being one of the four to make it into the school space program, he also bests JK and Gentaro in their specialties of break-dancing and double dutch. Considering that he explicitly breaks the rules of physics during the competitions, it's logical to assume that the switch is helping him out somehow.
- And I Must Scream: Unlike Goto and Erin, he got sucked into the Dark Nebula. While in Zodiarts form! Thankfully it was later revealed that the "Dark Nebula" is actually a stasis system on M-BUS and he wasn't actually conscious while he was there.
- Beat Them at Their Own Game: What he did to Gentaro and JK.
- Character Tics: Always playing mini-golf in his office.
- Chekhov's Gunman: At first, he seems to have just been there for the exam. At the end of the episode, though, Hayami reveals that Sugiura ended up being Taurus.
- Deal with the Devil: Seems to be his MO when dealing with potential threats.
- Even Evil Has Loved Ones: Apparently, he had a crush on Sayaka, the former student council president, and that is the real reason why he has gone so far off the deep end.
- Eyepatch of Power: He has one in his Zodiarts form. Note: it's on his right.
- Foil: To Yamada, both having been Control Freaks that suffer from god complexes and use their newfound power to rule their school with an iron fist. Unlike Yamada, Sugiura learned the error of his ways and undid his actions thanks to Sayaka.
- A God Am I: Thanks to Hayami's manipulation, Sugiura has gained a god complex.
- He Who Fights Monsters: His attempts to "improve" the student body make him out to be as dangerous as the four men who got Sayaka injured.
- Heel–Face Door-Slam: He's the first of the Horoscopes to actually legitimately betray the others and try to join the Kamen Rider Club's side. Cue Virgo and the Dark Nebula.
- Kick The Son Of A Bitch: His first four victims really deserved it.
- Meaningful Name: The syllables in his name can be rearranged into "Taurusu Gyu" (Gyu meaning "bull").
- Mundane Utility: Gu-anna, the medium of his Mind Control powers, and also an excellent golf club.
- My God, What Have I Done?: When confronted with the former School President, he finds that he can't actually steal her soul when he finds out she's deliberately breaking rules—wearing mismatched socks, uniform and having a barbecue on the school roof—and cries.
- Mind Control: Not only does signing his contract make people lose all body function, but thanks to his Gu-anna, he can suck out their souls and put them under his control. He even goes as far as to brainwash Meteor!
- A Nazi by Any Other Name: The mannerisms of his disciplinary committee should give you a clue. However, this is because Sugiura had sucked out their souls beforehand.
- Sixth Ranger Traitor: Also like Yamada, he has this role among the Horoscopes. While Yamada didn't so much as betray them as he did just utterly screw around instead of doing anything productive, Sugiura actually left the Horoscopes altogether.
- Sore Loser: Even after losing the golf match, Sugiura refused to honor his word and brainwashed Ryusei.
- Staff of Authority: His Gu-anna.
- Tyrant Takes the Helm: Has started using his new found powers as a Horoscopes to severely limit the individuality of AGHS (Which is ironically the exact opposite of what Gamou wants) by enforcing new rules on the school, including a new dress code.
Dark Yuki/Gemini Zodiarts
Dark Yuki/Gemini Zodiarts
Portrayed by: Fumika Shimizu (live), Hiromi Konno (voice)
- Action Bomb: What her Gemini Supernova clone functions as.
- Aside Glance: She glances at the camera when she does an Evil Laugh.
- Bread, Eggs, Milk, Squick: The pranks Gemini pulls on the Kamen Rider Club: tying up Ohsugi's suspenders to stretch it to its limit, spraying JK with a water hose, dumping flour on Shun, and finally, throwing Miu off a balcony.
- Death Dealer: Wields exploding cards called, respectively, Lynceus the red cards and Idas the blue cards as weapons.
- Doppelgänger Attack: Like its name suggests, it can make a duplicate of itself as its Supernova ability, that explodes.
- Expy: Design-wise, she looks like Nasca. In personality, Harley Quinn.
- Genki Girl: A villainous example.
- Having a Blast: Uses cards that explode. Red ones instantly explode, Blue ones act similar to the Stamper Switch.
- Meaningful Name: An alternate spelling of Yuki Jojima in English (with a lot of liberties taken) is "Yuki Jousima", which can be rearranged to say "I am Soujikyuu"; "Soujikyuu" is the name of the Gemini astrological sign (not the constellation, which is Futago-za) in Japanese.
- Stealth Pun: a double-themed character whose secondary motif is a jester; a joker. Don't get it?
- Villainous Breakdown: Gets one when Gentaro shows Yuki her homemade Space Ticket and thus frees regular Yuki from fading away.
- White Mask of Doom: As Dark Yuki...until spending enough time active causes her to occupy the real Yuki's presence, represented by her acquiring the real Yuki's face while forcing said White Mask onto her instead!
Ran Kuroki/Pisces Zodiarts
Ran Kuroki/Pisces Zodiarts
- Apocalypse Maiden: As the last Horoscope, the Club needed to protect her to keep her Switch from falling into Gamou's hands, allowing him to start his endgame to contact the Presenters. It didn't work out.
- Empowered Badass Normal: Ran was a great swimmer and competent fighter even before becoming a Zodiarts, and managed to hold her own against Tatsugami even after first transforming.
- Fish People: Pisces's general design motif makes her look like one.
- Lightning Bruiser: Her underground swimming abilities allow her to move quite fast, and she is capable of matching Tatsugami in a fight.
- Making a Splash: In addition to water-manipulation powers, Pisces can "swim" underground, as shown when fighting Tatsugami.
- Meaningful Name: In the only other stretch of the group, when literally translating her name into English, you get "unbarked lumber" for "kuroki" and "orchid" for "ran", which form the (again a stretch) acronym UO which is the Japanese word for fish, which is what Pisces is represented by.
- Nice Job Breaking It, Hero: It turns out that Hayami and Tatsugami were banking on Ran to transform and save the former from the latter, therefore bringing the last Horoscopes switch into existence.
- Prongs of Poseidon: The clone of Pisces in the movie uses a Type-1, but the Pisces in the show never uses it.
- The Load: In both arcs that she appears in, nearly all of Ran's decisions actively make the situation worse due to her rashness, violent tendencies, and smothering overprotectiveness towards Haru. Her second screw-up, with admittedly good intentions, almost caused a regional apocalypse.
- Token Good Teammate: Pressed her switch for entirely selfless reasons, and by far beats Capricorn, Taurus, and Aquarius eventually for the position of least malevolent Zodiarts.
