This is the character list of 2024 Ultra Series Ultraman Arc.
SKIP is an organization that conducts scientific investigations and implements precautionary measures against kaiju-related disasters. Alternate universe counterparts of Yuma, Shu, Rin, and Hiroshi are members of the GGFJ.
Yuma Hize is a 23-year-old rookie investigator assigned to the Hoshimoto City Branch of SKIP. After losing his parents during Monogeros' attack on K-Day, Yuma bonded with the alien being Rution. His imagination reformed Rution into Ultraman Arc, modeled on Yuma's childhood drawing of an ideal hero.
Near the series finale, Sweed and Ze-Su attempt to sever Yuma's bond with Arc by imprisoning him in an illusion where the K-Day incident never occurred. Yuma rejects the illusion and escapes. Following Sweed’s death, Yuma and Arc depart for space to continue addressing the conflict in Star Sonia.
Yuma transforms into Ultraman Arc with the and the . His imagination enables Arc to creatively adapt attacks, form new weapons, and generate Arc Cubes.
Yuma Hize is portrayed by , with Paul Castro Jr. voicing him in the English dub. His childhood self is portrayed by .
Shu Ishido is a 25-year-old special investigator dispatched by the of the . He is armed with the handgun and stationed at the Hoshimoto City Branch of SKIP, where he partners with Yuma.
Before joining SKIP, Shu lost a partner during a confrontation with Alien Repo, leading to resentment toward extraterrestrials. His outlook changes after encountering Alien Croco. Tasked by the Global Defense Force with monitoring the Onyx, Shu initially conceals his mission but gradually softens and comes to view Yuma as a true friend. He is also portrayed as a coffee enthusiast, becoming restless and easily flustered without caffeine.
Shu Ishido is portrayed by , with Micah Solusod providing the English dub voice.
Rin Natsume is a 25-year-old investigator and skilled programmer working at the Hoshimoto City Branch of SKIP. She designed the YouPi series of robots, which are utilized by SKIP branches across Japan.
Rin Natsume is portrayed by , with Dani Chambers voicing her in the English dub.
Hiroshi Ban is the 43-year-old chief of the Hoshimoto City Branch of SKIP.
Hiroshi Ban is portrayed by , with Tony Oliver providing the English dub voice.
YouPi , officially , is an autonomous AI-equipped support robot assigned to the Hoshimoto City Branch of SKIP. YouPi can separate into two components: the drone-like You-bot (head) and the bipedal Pi-body (body). It can also transform into a scooter-like vehicle to transport riders.
YouPi is voiced by in the original Japanese version and by Brandon McInnis in the English dub.
Other members : Former GDF officer and chief of the Fujiyama City Branch of SKIP. Later transferred to the Miyako City Branch and then the Sambon Island Branch. Portrayed by . : Mass-produced support robots created by the Global Defense Force based on Rin's YouPi. Unlike the original, they lack the ability to separate into two units. : A strict and uptight model stationed at the Fujiyama City Branch. Voiced by . : A feminine model stationed at the Miyako City Branch, characterized by Kansai dialect speech and an obsession with Ultraman Arc. Voiced by . : A laid-back model stationed at the Sambon Island Branch. Voiced by .
Ultra Warriors Ultraman Arc is the titular Ultra Warrior of the series and the merged form of Yuma Hize and Rution, a being of light from a distant galaxy. After Ze-Su declared war on those who opposed his plan to save Star Sonia, Rution traveled to Earth, where he bonded with Yuma following Monogelos' attack and his failure to save Yuma's family. Rution remained dormant within Yuma until his adolescence, emerging when Digelos launched an attack on Earth. From then on, Arc engaged in repeated battles against monsters and Ze-Su's forces.
When Sweed attempts to reopen the Ze-Su Gate, Rution reshapes it into the Galaxy Armor using his imagination. Although this grants Arc the ability to face stronger opponents, the armor also exposes him to pollutants from Star Sonia, weakening his connection to Yuma. After escaping Guilebaku's illusion, Yuma uses his imagination to purify the pollutants into a new Arc Cube and defeats Sweed’s Star Form. Yuma and Arc later depart Earth to continue their struggle against Ze-Su on Rution’s homeworld, learning that Star Sonia's crisis can be resolved without endangering Earth or other planets.
Arc primarily fights using energy-based techniques, with Yuma's imagination enabling unorthodox strategies and the creation of new abilities. His finishing move is . His primary weapon is the .
Other forms include: : Arc's original form prior to fusing with Yuma. This was also the form he used while pursued by Monogelos. : Armors powered by Arc Cubes that activate when Arc's Color Timer blinks red. Their appearances and designs are based on Yuma's childhood sketches. : Sun-themed armor granting super strength and pyrokinesis at the cost of speed. Its weight also prevents flight. : Moon-themed armor that enhances speed at the cost of defense. It includes the gauntlet with defensive and illusionary functions. : Galaxy-themed armor granting energy and space-time manipulation abilities, as well as the formed from four . Created by Rution by reshaping the Ze-Su Gate, this form leaves Arc vulnerable to toxins transmitted through the gate. : Saturn-themed armor granting cryokinesis. Exclusive to the stage show New Generation The Live during the Ultra Heroes Expo 2024 Summer Festival in Ikebukuro Sunshine City and the Ultra Heroes Expo 2024 Umeda Summer Festival.
Ultraman Arc is voiced by in Japanese, and by Christopher Wehkamp in the English dub.
Guil Arc is a dark clone of Ultraman Arc that appears in Ultraman Arc the Movie: The Clash of Light and Evil. Guil Arc is created by Alien Repo to support her invasion of Earth, exploiting Shu Ishido's lingering trauma over the death of his partner prior to joining SKIP. Ishido had expressed his grief through a sculpture titled Guilty, which Repo delivered to SKIP and used to trigger his inner darkness. By combining this darkness with a stolen Arc Ariser and a newly created Arc Cube, Repo forcibly transformed Ishido into Guil Arc.
Ishido ultimately regains control with Yuma's help after a mysterious stranger provides him with another Arc Ariser. Following the battle with Repodios, the Arc Ariser is returned to Yuma, and the Guil Arc Cube disappears along with most of Ishido's memories of the event.
As a clone, Guil Arc mirrors Ultraman Arc’s abilities, performing techniques in reversed stances. His finishing move is . He can also equip Arc Armors by borrowing the corresponding Arc Cubes, most notably donning the Galaxy Armor during the battle with Repodios.
Other Ultra Warriors : An Ultraman from an alternate universe who, alongside Earth Garon, battled Hellnarak and its forces. When Ultraman Arc was dimensionally displaced, Blazar cooperated with him to create his own Arc Cube, allowing Yuma to channel Blazar's powers in later battles.
Antagonists Sweed is an alien devotee of Ze-Su and the primary antagonist of the series. She possesses psychic abilities, including telepathy and telekinesis, as well as multidimensional powers. Sweed commands Zadime, using it to battle Ultraman Arc and to open the Ze-Su Gate. After Zadime is defeated, she later returns alongside Guilebaku. Following Guilebaku's defeat, she transforms into but is ultimately defeated by Ultraman Arc.
Sweed is portrayed by , with Sam Slade providing her voice in the English dub.
Ze Su is an alien leader of several planets within his and Rution's galaxy and is revealed to be the true culprit behind the K-Day incident. Facing the imminent destruction of his galaxy, Ze-Su created the as a means of dispersing Star Sonia's surplus energy, though at the cost of Earth's destruction. His plan was opposed by Rution's species, leading Rution to travel to Earth and seal the device. Humans later identified it as the , linking its presence to K-Day and subsequent monster attacks, culminating in battles in Hoshimoto City.
Years later, Ze-Su dispatched Sweed and Zadime to reactivate the Ze-Su Gate, but it was reformed into the Galaxy Armor by Rution/Arc's imagination. Ze-Su exploited the armor's connection to Star Sonia to inject pollutants into Arc, gradually weakening him. Despite the development of a new solution to stabilize Star Sonia without harming Earth, Ze-Su continued his efforts through Sweed and Guilebaku. When these attempts failed and Yuma purified the pollutants into a new Arc Cube, Ze-Su forcibly transformed Sweed into her Alien Form as part of constructing another Ze-Su Gate. However, this plan was also thwarted by Arc.
Ze-Su's ultimate fate remains unknown, as Yuma and Rution/Arc depart Earth to confront him directly in Rution's galaxy.
Alien Repo is the main antagonist of Ultraman Arc the Movie: The Clash of Light and Evil and an ally of Ze-Su's faction. She fuses with Zerogelos to form , but is defeated by Ultraman Arc, who uses the Solis Armor, and Guil Arc, who uses the Galaxy Armor.
Alien Repo is voiced by .
Minor characters : A reporter for the television station TTV. She is portrayed by . : Yuma's father, who sacrificed himself to protect his son during Monogelos' attack 16 years earlier. He is portrayed by Masato Hagiwara, who also voices Ultraman Arc. : Yuma's mother, who sacrificed herself during Monogelos' attack 16 years earlier. She is portrayed by .
Monsters and aliens : A subspecies of Monogelos and Ultraman Arc's first opponent. Its energy-based abilities posed difficulties for Arc, but it was ultimately destroyed with Arc Finalize (Wave Shoot). : One of the monsters Arc faced on Earth prior to battling Shagong. First appeared in episode 26 of Ultraman. : Among the monsters encountered on Earth before Shagong. Another Red King II was noted among numerous monsters appearing in Japan. First appeared in episode 25 of Ultraman. : A carnivorous 5 m creature known to prey on livestock. After being parasitized by Oo-ze, it grew to giant size following forced consumption of stalactites and growth hormone, but was killed by Arc Finalize. In episode 6, three naturally 50 m Shagongs attacked the Akebono Inn; two were destroyed by Arc using the Solis Sword Explosion and the Arc Giga Barrier in combination with Arc Exa Slash. In the film, two Shagongs attacked Doglf and were killed by it with assistance from Arc's Luna Saucer and Doglf's energy breath. : A parasitic lifeform that feeds on calcium-based minerals and possesses monsters as hosts. Arriving via Monogelos, Oo-ze later proliferated on Earth. The death of the swarm's progenitor caused its spawn to perish. : An ancient monster that lived in swamps and was sealed underground about 1,200 years ago by villagers using a concoction of 88 herbs. Excavation work reawakened it in the present day. Arc defeated Leodo by drilling with Arc Exa Slash and finishing with Arc Finalize. : Sent by Ze Su to stop Rution from sealing the Ze Su Gate. After pursuing Rution through the portal, it was killed on Earth by Rution Finish. Its exposed later became the source of Oo-ze's assault on Hoshimoto City. : A rat of the species Electricamus nipponicus bearing bacteria that allow it to feed on electricity. It nested at Kawami Heavy Industries' central power plant; striking the main Daimode generator caused it to grow to giant size. In this form it had a hardened skull and could generate an electromagnetic barrier, which failed once the generator link was severed. Arc used the Solis Armor for the first time, fracturing its skull with Solis Knuckle Impact and finishing it with Arc Finalize. : A whale-like monster awakened after a fossil discovery in the Daiko Mountain Ridge. It tunneled underground and used water and salt it produced to flood the mountain, turning it into a saltwater lake. Arc defeated it with Arc Finalize.