- Voiced by: Kohji Moritsugu
For tropes that apply to Ultraseven in general, see the Ultraseven character sheet.
- Art Evolution: He's a got a sleeker and more muscular form than the classic Ultraseven.
- Only Known by Their Nickname: He's only called as the Red Giant by the cast themselves. Jin reveals his true name at the season finale.
- Walking Spoiler: He looks like an average Ultra to you, right? Not when he's associated with Jin's past and not he's voiced by none other than Kohji Moritsugu.
Jin (Agent J)
- Played by: Eriku Yoza
- Amnesiac Hero: Jin wakes up with no memory of who he is, what he's doing with Ultraseven powers, and why there's a woman telling him to save the world. The series' overarching story is all about him trying to uncover the answers.
- Played by: Tomohito Wakizaki
- Played by: Anri Ban
- Early-Bird Cameo: Though she officially debuts in episode 4, she cameos in the disguise of a nightclub waitress in episode 1.
- Master of Disguise: She's the best undercover agent in the entirety of DEUS.
- Trademark Favorite Food: She loves chocolate and is usually seen eating some.
Mystery Woman (Elea Saeki)
- Played by: Saki Kagami
- Woman in White: Her mysterious identity is accentuated by her pale dress.
- Voiced by: Yosuke Natsuki
- Played by: Toshiyuki Watarai
- Played by: Ryohei Odai
- First Appearance: DREAM
- Curbstomp Battle: Is easily trounced by Seven.
- Giant Space Flea from Nowhere: There's no particular explanation for what's up with Galkimes or its alien masters. It just shows up so that Ultraseven can show off his powers and fighting skill for the first time in the series.
- Hand Blast: Can shoot blasts of destructive green energy from its palms.
- Our Monsters Are Weird: Galkimes' appearance is really best describable as "some sort of a humanoid creature".
- Starter Villain: The first Monster of the Week fought by Seven in this series.
- First Appearance: HOPELESSPortrayed by: Takayasu Komiya (both voice and human form actor)
Alien Markind has proven to be a surprisingly enduring foe, for he has made a number of appearances in more kiddie-friendly Ultra Series with the same role as a tradesman on the side of the villains.
- Affably Evil: For a businessman who cares as little about his employees' lives as they do, he's a pretty chipper and amiable fellow who treats both his employees and his enemies very nicely.
- Benevolent Boss: As amoral as he is, he treats his employees quite nicely, since they do not care that his device is dangerous, only that he is paying them.
- Eye Beams: Can shoot blue lasers from his eyes.
- Hand Blast: Can fire yellow orbs of energy from his palms.
- Human Resources: In order to power his invasion device, he drains the mental energy of his employees, shrinking their brains until it kills them.
- Insectoid Aliens: Looks like a giant humanoid cockroach.
- Meaningful Name: Markind is a combination of "merchant" and "akindo" (which means "merchant" in the Kansai dialect).
- Proud Merchant Race: His species are usually portrayed as such, albeit of the unscrupulous variety.
- Punch-Clock Villain: To him, the entire job of building a device to invade Earth at the cost of the lives of his apathetic employees is no different from a standard office job.
- Spell My Name with an "S": Also called Makindo or Merkind.
- First Appearance: DIAMOND "S"
- Bizarre Alien Biology: Earth's atmosphere is incompatible with Peginera's body, so it went with the plan that it did in order to adjust to its new environment and eventually reform itself as an Earth-adapted being using a strange cube-like device.
- Chest Blaster: Can fire a green laser from its chest that causes a series of powerful explosions.
- Hive Mind: Peginera itself is one; all its cells are individual sapient beings.
- I Am Legion: Peginera's hosts refer themselves as "we" due to the individual parasites all sharing a singular mind.
- Puppeteer Parasite: Every one of Peginera's cells acts as one. By being ingested by humans in the Shiner 05, they are able to enter the brain and enhance its efficiency at the cost of the victim becoming enslaved by Peginera. Those who fight back are killed by the parasite.
- Worm That Walks: Every last cell in Peginera's body is a sapient being forming a hive mind. It puts this trait to its advantage when facing Seven, shooting out some its little selves to try and infect him.
- First Appearance: PEACE MAKER
- Bullfight Boss: Charges a lot at Seven during the fight, forcing Seven to try and push him back.
- Flower Mouth: His jaw opens vertically, splitting his entire face in two.
- Hand Blast: Can shoot red orbs of explosive energy from his palms.
- The Juggernaut: While he never turns gigantic, his strength and toughness alone made him exceptionally formidable. Seven was only able to defeat it because of the Oripham.
- Nested Mouths: Possesses a second mouth that's only visible when he opens his Flower Mouth.
- Super Speed: Able to engage in sudden bursts of lightning speed to catch foes off guard.
- Super Strength: Strong enough to manhandle Ultraseven and send a person flying with a single punch.
- First Appearance: PEACE MAKERPlayed by: Kenji Yabe
- Aliens Among Us: A number of them live on Earth in disguise to get away from the war on their homeworld. They're pretty happy with life on their new world.
- Crouching Moron, Hidden Badass: Once a Chamuda gets his hands on the Oripham, he stops being a klutzy, neurotic doormat and gains enough power to weaken the Vo-Da enough for Seven to finish the invader off. Gets deconstructed when the newfound power turns the Chamuda warlike and leads to them and the Vo-Da completely wiping each other out at the end of the war.
- Ditto Aliens: Jin and Agent K observe that every Chamuda has a nearly identical human form (due to all of them being played by the same actor).
- Hand Blast: The Oriphan grants them one powerful enough to harm the Vo-Da.
- Nice Guy: The whole species are depicted as a gregarious and friendly people, although they sometimes get to the point of being doormats.
- Puny Earthlings: Inverted for once in the Ultra Series. The Chamuda are physically frailer and more fragile than humans, thus making them a peaceful people who would rather not get involved in anything more strenuous than a paying job. This changes once they get their hands on the Oripham.
- Rubber-Forehead Aliens: The only thing differentiating them from humans are their blue skin and third eye.
- Third Eye: They have a third eye that opens when they will it to.
The Soul of Light
- First Appearance: TRAVELERVoiced by: Asami Imai
- Energy Being: As the name suggests, it's a being of pure light, although it manifests in a form roughly approximating some kind of bird.
- Last of His Kind: After its planet was destroyed, the survivors slowly expired until only it was left. Thus it seeks a companion to fill the gap left in its life.
- Symbiotic Possession: To satisfy its desire for a traveling companion, it performs something similar to this on an old friend of Jin named Takao, fulfilling his childhood dreams of space travel.
- Time Abyss: It's over twenty thousand years old.
- Walking the Earth: Or more accurately, the universe.
- First Appearance: YOUR SONGPlayed by: Saaya Ishikawa (Nataru)
- Defector from Decadence: Nataru defected from her kind and their invasion scheme after falling in love with both Earth music and Agent D.
- Faceless Goons: Their masks add to the effect, symbolizing their utter loyalty to the Vairo dictator.
- Guns Akimbo: Nataru turns out to be quite skillful in this when she has to defend herself from her former kinsmen.
- Human Aliens: Underneath their masks, they look just like humans.
- Interspecies Romance: Nataru fell in love with Agent D when she arrived on Earth, which was part of the reason she decided to make herself at home on the planet instead of invading it.
- Make Me Wanna Shout: The small dish-like device on their masks allow them perform a sonic scream.
- Malevolent Masked Men: Their masks certainly make them look creepy and malevolent.
- Putting on the Reich: Their clothes make them look like an extraterrestrial version of the SS.
- Street Musician: Nataru lives as one.
- White Mask of Doom: The masks they wear are pure white, with the addition of a single tear under the right eyehole and a small device that looks kinda like a tiny satellite dish where the mouth would be.
- First Appearance: YOUR SONG
- Curbstomp Battle: Vadoryudo has the dubious honor of having the shortest fight in Ultra Series history at 15 seconds.
- Cyber Cyclops: Has a single orange cybernetic eye.
- Elemental Shapeshifter: Can transform into a mass of liquid to allow its creators transport it around more easily.
- Expy: It's modeled after King Joe.
- Eye Beams: Can charge up a blast of blue lightning from its single eye.
- Humongous Mecha: Of the Organic Technology variety.
- Organic Technology: As evidenced by its Boss Subtitles "Biological Mechanical Weapon".
- We Hardly Knew Ye: Appears for less than a minute before being destroyed by Ultraseven.
- First Appearance: BLOOD MESSAGEPlayed by: Yuki Kuroda and Yukie Kawamura (human form actor and actress)
- Alien Blood: The Hupnath has blue blood.
- Aliens Among Us: Due to being sleeper agents, they live as totally normal humans until awoken. It's suggested that dozens more still lurk everywhere waiting for some violent event to turn them into brutal killers.
- The Berserker: Hupnath's fighting style is a no-holds-barred beatdown of the most indiscriminate variety.
- The Blank: They have no facial features in their true form unless one counts the spikes growing around their heads.
- Couldn't Find a Pen: The Hupnath killer writes "NOT MAN" in blood using that of his victims at every scene, which is DEUS' giveaway that they're dealing with a female extraterrestrial murderer. Except it turns out he was actually writing "NORMAN" as a subconscious cry for someone to stop him.
- Manchurian Agent: The Hupnath live as perfectly normal humans with no memory of their alien natures until an act of brutal violence is committed against them, causing their memories to return and the aliens to become serial killers. They only return to normal once they have killed everyone in sight, but will snap back to their alien forms if conditions similar to that of when they first transformed occur (such as a thunderstorm).
- Mercy Kill: Jin remarks that the Hupnath's death is one after the truth of his identity come to light.
- Red Herring: All clues pointed to Asami being the Hupnath, but it ultimately turns out to be Kyosuke, who was so devastated from accidentally killing Asami in his first rampage that he entered an extreme state of denial, convincing himself Asami was still alive, that she was the killer, and mimicking her (such as growing his hair out) when he carried out the murders.
- Red Is Violent: Becomes known as the Red Coat Killer for the red coat he wear at the scene of every murder.
- Roaring Rampage of Revenge: Asami targets the drug dealers as revenge for triggering her transformation. Except it turns out Kyosuke was killing the drug dealers under the guise of Asami. Deconstructed as Kyosuke's indiscriminate thirst for vengeance was what led to him killing Asami in his original transformation.
- Serial Killer: Think Norman Bates, but if he was extraterrestrial sleeper agent.
- Shout-Out: To Psycho. Like Norman, Kyosuke is a serial killer whose perception of reality was warped when he killed a woman with major influence on his life, wracking him with such guilt that he began to imitate said woman when he carried out his murders. The blood message of "NORMAN" pushes the point further.
- Super Toughness: Able to survive being repeatedly shot at point blank by a gang of drug dealers.
- Sympathetic Murderer: It's hard not to feel kinda sorry for him after the reveal. Helps that his victims aren't exactly the most sympathetic type either.
- Wolverine Claws: Their major weapons are their long bony claws, able to kill a human in one swipe.
- First Appearance: RED MOONPlayed by: Hiro Ogasawara (Nozomu)
- Beast Man: Jyuujin is sort of a werewolf-fishman monster.
- Bizarre Alien Biology: Water is so alien to his body that exposure to it mutates him from a human-like being into a bestial monster.
- Human Aliens: Jyuujin's original form, Nozomu.
- Mercy Kill: Ultraseven X gives him one when Jyuujin comes to the realization that Mahiru is dead. As he dies, Saku comes to comfort him, telling his brother Mahiru will be with him when he wakes up again.
- Our Werebeasts Are Different: Jyuujin is compared to a werewolf a few times in the story, but rather than transforming into a beast every full moon, he transforms when touching water but comes out during lunar eclipses. Unfortunately, he cannot turn back to normal once transformed.
- Tragic Monster: Poor guy. Nozomu is completely unaware of the fact that he killed his owner lover upon transforming and desperately tries to find her. He is devastated when DEUS reveals the truth to him, screaming in anguish rather than trying to kill them.
- Was Once a Man: Or, was once a Human Alien. His race can't touch any forms of water, which mutate them into beasts as a result.
- First Appearance: RED MOONPlayed by: Hassei Takano
- Aliens Among Us: He came with his brother to live on Earth a century ago.
- Human Aliens: Like his brother, although he's managed to keep his normal form over the course of a century.
- Memory Jar: He keeps one called the Glass Memorial, which appears as a pair of binoculars. He tells people that it belonged to Nozomu and contains his memories instead.
- Really 700 Years Old: He's been living on Earth for a century, having changed aliases and stored his older memories elsewhere to hide it.
- First Appearance: NEW WORLD
- Big Bad: Their plans to invade the Showa M78 universe through a gateway created by the Aqua Project was what led to the key events of the series, such as Jin losing his memories and the appearance of Ultraseven in their universe.
- Breath Weapon: They breathe beams of purple energy, firing them either in the form of small lasers or as binding ropes to entangle foes.
- The Conspiracy: They're the race that secretly controls the world and DEUS, manipulating official information sources to suit their needs and keep the public ignorant of their plans to invade the M78 universe. People who find out get killed by their agents.
- Early-Bird Cameo: They appear in their human forms as early as the first episode.
- Giant Spider: Their true forms are spider-like creatures officially standing about 4.8 meters tall.
- Hidden Villain: While they are hinted at from the very beginning, their role in the story is minimal until the final three episodes when Jin really begins to dig into the the origins of his powers and uncovers the truth about DEUS and Elea.
- Hive Mind: They possess one, which means they speak in unison every time.
- Invisibility: They possess this ability, using it to spy on Jin and Elea throughout the series.
- Omniscient Council of Vagueness: They're pretty much the Illuminati as giant telepathic spiders, secretly controlling all information and DEUS itself in order to carry out their invasion plans. They're even known as the Shadow Rulers.
- Sinister Surveillance: They are constantly monitoring Jin and Elea via the giant screens that float all over the city to spread their misinformation and propaganda.
- Walking Spoiler: They're very important to the story but virtually nothing is revealed about them until its conclusion.