List of Kamen Rider Saber characters

 is a Japanese tokusatsu drama. It is the 31st entry in the Kamen Rider series and the second series of the Reiwa period.
Sword of Logos.
The is a mysterious organization formed by a secret sect of swordsmen sworn to protect the ancient and keep peace in the world. They are led by an individual who holds the title of "Master Logos" while four sages, also known as the , hold the highest degree of authority and approve the organization's policies.
The Kamen Riders of this organization each wield one of 11 unique transformation swords composed of a singular element, which they can use to invoke their combat weapons and transform in conjunction with , with some using the as well. Those who use the SworDrivers can use up to three books while those who only use a Seiken are limited to one at a time. While all of the Riders are able to assume different forms based on the Wonder Ride Books in their possession, books with the same elemental affinity as their sword grant more power compared to those that do not, with the SworDriver users able to achieve forms.
Together, all of the Seiken and 19 regular Wonder Ride Books can be used to create the and either put Wonder World and Earth at risk and bring about the end of the universe or create one final Seiken.
Northern Base.
The is a branch of the Sword of Logos based in the North Pole and serves as most of the swordsmen's base of operations. Following Touma becoming Kamen Rider Saber, some of the organization's members choose to use his bookstore as a passageway from the Northern Base and back.
Touma Kamiyama.
 is a novelist and former inhabitant of who becomes the new after receiving a red Wonder Ride Book from Daichi Kamijo. While living in Wonder World in his youth, Touma befriended Luna and Kento. When Kento's father, Hayato, defected to the Megids and led their invasion of Wonder World to kidnap Luna, she and Touma tried to escape. While he was unable to save her, he was apparently saved by Daichi, who told Touma he can decide stories' endings before giving the boy his "Brave Dragon" Wonder Ride Book and sending him to Earth. Upon arriving however, Touma lost much of his childhood memories, but suffered recurring nightmares about Luna. Despite this, he remembered Kento's suggestion to become a novelist and opened an antique bookstore called the .
In the present, as his home city is attacked by a monster from Wonder World, Touma activates the Wonder Ride Book in his possession and transforms into the new Kamen Rider Saber. Amidst his battles against the Megids, Touma discovers a strange connection to the mysterious Kamen Rider Calibur before discovering Daichi had become Calibur and betrayed the Sword of Logos. After Kento's apparent death and defeating Calibur, Touma eventually recovers his lost memories. While investigating conspiracies within the Sword of Logos, Touma is falsely branded a traitor by members of the organization's Southern Base and forced to go AWOL with Mei and Yuri. As his allies learn the truth however, Touma slowly reconciles his friendships with them.
Touma utilizes the Wonder Ride Book in conjunction with the Seiken SworDriver and the knightly sword to transform into Kamen Rider Saber. While transformed, he gains pyrokinesis and use of the familiar for combat assistance. He later obtains the motorcycle, created from the Wonder Ride Book of the same name. He can also combine "Brave Dragon" with other Wonder Ride Books and access the following forms:
If necessary, Touma can also use his allies' Wonder Ride Books to assume different forms or augment his attacks:
After acquiring the Wonder Ride Book, Touma can transform into a stronger version of Saber that equips him with the gauntlet, which allows him to use up to three Wonder Ride Books at once to augment his attacks. He is also capable of summoning the God Beast Brave Dragon to ride into battle.
In order to control "Primitive Dragon", Touma confronts the titular dragon. Upon learning that it had lost all of its friends, he befriends it, promising to never leave it alone. This results in the creation of the Wonder Ride Book, which he can combine with "Primitive Dragon" to transform into his form. While transformed, Saber gains use of the familiar for combat assistance and has control over fire, water, lightning, Earth, and wind. Touma can also lend "Elemental Dragon" to any of his allies with a corresponding element to enhance their powers.
After acquiring the Wonder Ride Book, Touma can utilize it in place of "Brave Dragon" to transform. While transformed, Saber is equipped with the and the and gains use of the God Beast Brave Dragon, , and familiars for combat assistance. This Wonder Ride Book first appears the film "Kamen Rider Saber Theatrical Short Story: The Phoenix Swordsman and the Book of Ruin". After temporarily losing it, Touma regains the book after Master Logos frees Bahato to aid him in his plans.
During the events of the web-exclusive series "Kamen Rider Saber × Ghost", Touma acquires the Wonder Ride Book and utilizes it to transform in place of "Brave Dragon".
Touma Kamiyama is portrayed by . As a child, Touma is portrayed by .
Rintaro Shindo.
 is the current and student of before the latter was killed by Zooous, whom Rintaro developed a vendetta against. After meeting Touma, he senses the novelist's ability and asks him to join the Sword of Logos. When Touma becomes the new Kamen Rider Saber, Rintaro decides to stay in and work at the former's bookstore.
Rintaro utilizes the Wonder Ride Book in conjunction with the Seiken SworDriver and the knightly sword to transform into . While transformed, he gains hydrokinesis and use of the familiar for combat assistance. In addition, he owns a magical cellphone capable of transforming into the , a reverse motor trike armed with two Gatling guns. He can also combine "Lion Senki" with other Wonder Ride Books and access the following forms:
After acquiring the Wonder Ride Book, Rintaro can transform into a stronger version of Blades that equips him with the gauntlet, which allows him to use up to three Wonder Ride Books at once to augment his attacks, and the shoulder-mounted , which allow him to fire streams of pressurized water. He is also capable of activating , transforming into an evolved version of the Animal Lion Senki.
After acquiring the Wonder Ride Book, Rintaro can transform into a more powerful version of Blades. While transformed, he gains cryokinesis and the ability to summon the souls of deceased swordsmen, such as his teacher, to aid him in battle.
Rintaro Shindo is portrayed by . As a child, Rintaro is portrayed by .
Ryo Ogami.
 is an aggressive great swordsman of the Sword of Logos' Northern Base known as the . He investigates Hayato's betrayal and defection from the Sword of Logos while caring for his son, , until he discovers Hayato was killed by Daichi and both were manipulated by the second Master Logos.
In the tie-in prequel manga, "Supplementary Volume Kamen Rider Saber: Kamen Rider Buster the Comic", Ryo met and befriended Haruka Kiritani during their childhood and attended together, where the former became a teenage delinquent for three years. After finding the "Genbu Shinwa" Wonder Ride Book, Ryo and Haruka were attacked by Shimii and rescued by their Japanese classics teacher, Toshikazu Kamikawa, who chose Ryo to become his apprentice and eventually succeed him as the second Swordsman of Earth. Sometime after Ryo surpassed Kamikawa, he married Haruka, who gave birth to Sora.
Ryo utilizes the Wonder Ride Book in conjunction with the "Zweihänder" to transform into . While transformed, he gains geokinesis and enhanced strength. He can also combine "Genbu Shinwa" with other Wonder Ride Books and access the following forms:
If necessary, Ryo can also use his allies' Wonder Ride Books to assume different forms:
Ryo Ogami is portrayed by .
Ren Akamichi.
 is a young, hot-headed ninja of the Sword of Logos' Northern Base known as the who admires Kento and develops a rivalry with Touma. Despite his skill as a swordsman, his irresponsibility and tendency for trouble-making often gets the better of him.
Ren utilizes the Wonder Ride Book in conjunction with the katana, which can alternate between single sword, twin sword, and shuriken modes, to transform into . While transformed, he gains aerokinesis and the use of ninjutsu skills. He can also combine "Sarutobi Ninjaden" with other Wonder Ride Books and access the following forms:
If necessary, Ren can also use his allies' Wonder Ride Books to assume different forms:
Ren Akamichi is portrayed by .
Tetsuo Daishinji.
 is the blunt yet bashful blacksmith for the Sword of Logos' Northern Base known as the who maintains the Seiken and Wonder Ride Books. He later starts to build a friendship with Touma.
Tetsuo utilizes the Wonder Ride Book in conjunction with the pistol sword to transform into . While transformed, he gains sonokinesis and enhanced hearing. He can also combine "Hanselnuts to Gretel" with other Wonder Ride Books and access the following forms:
If necessary, Tetsuo can also use his allies' Wonder Ride Books to assume different forms:
Tetsuo Daishinji is portrayed by . As a child, Tetsuo is portrayed by .
Sophia.
 is the protector of books for the Sword of Logos' Northern Base and the creator of the Wonder Ride Books who watches over Touma and the base's other swordsmen. After confronting her former apprentice, Daichi, Sophia is kidnapped and imprisoned by Reika under the second Master Logos' orders as part of their efforts to manipulate events in their favor. Despite this, Yuri and Touma were able to reassemble their fellow swordsmen before Kento rescues Sophia.
Sophia is portrayed by .
Southern Base.
The is the main branch of the Sword of Logos.
Reika Shindai.
 is the Southern Base's messenger, an assassin-class fencer known as the , and the younger sister of Ryoga. She arrives at the Northern Base to observe Touma's power as Saber. After he refuses her invitation to join the Southern Base however, Reika secretly kidnaps Sophia and frames the novelist for it, temporarily turning the Northern Base's swordsmen against him. As the swordsmen slowly realize the truth, Reika receives new orders from Master Logos to steal their Rider equipment and eliminate them. However, Reika's loyalty to Logos begins to waver after learning her superior has been conspiring with the Megids. Upon learning of Logos' true plans, she and Ryoga defect and aid the Northern Base in stopping Logos.
Reika utilizes the Wonder Ride Book in conjunction with the rapier to transform into . While transformed, she gains typhokinesis and the use of insect-based abilities and constructs.
Reika Shindai is portrayed by .
Ryoga Shindai.
 is a paladin and Reika's older brother known as the . He initially believes in and loyally serves Master Logos before discovering his superior freed Bahato behind his and Reika's backs. Disillusioned, the Shindais defect and aid the Northern Base in stopping Logos.
Ryoga utilizes the Wonder Ride Book in conjunction with the sword, which can convert into a trident, to transform into . While transformed, he gains chronokinesis and the ability to teleport.
Ryoga Shindai is portrayed by .
Master Logos.
An unnamed second is the current leader of the Sword of Logos and the mastermind behind much of the series' events in order to claim the "Almighty Book" for himself and reshape the world in his twisted image, an act which the organization considers forbidden. Initially manipulating his order and the Megids from the shadows, he eventually makes himself and his true intentions known by setting out to claim his swordsmen's Seiken to perform a ritual that will grant him god-like power.
The second Master Logos is portrayed by .
Recurring characters.
Mei Sudo.
 is a new editor of who is in charge of publishing Touma's work. After Touma joins the Sword of Logos, Mei decides to help his ally Rintaro adjust to modern life and receives a special white book she can use to alert Touma and his allies to Megid attacks.
Mei Sudo is portrayed by .
Tassel.
, real name , is a friend of the original Master Logos from Wonder World who serves as the series' storyteller. He, the original Master Logos, and a woman who connected Wonder World and Earth were once friends of Storius, Legeiel, and Zooous prior to the latter trio becoming Megids.
Tassel is portrayed by Tobi from Les Romanesques.
Luna.
 is Touma and Kento's childhood friend who, like the former, hails from Wonder World and serves as a link between it and Earth. After the second Master Logos manipulated Hayato into targeting her, she attempted to run away with Touma, only to be pulled into and trapped in the world of Void. In the present, Touma eventually makes contact with her through their childhood book, "Wonder Story", and brings her to the human world.
Luna is portrayed by .
Kamen Rider Calibur.
 is a moniker used by those who become the . It was originally associated with the Sword of Logos until the original bearer of the name was corrupted and manipulated by the current Master Logos into siding with the Megids, and "Calibur" became synonymous with "renegade".
Anyone who becomes Calibur utilizes the Wonder Ride Book in conjunction with the and the broadsword to transform. While transformed, they gain umbrakinesis and use of the familiar for combat assistance.
After Daichi's identity as the second Calibur is exposed, he obtains the Wonder Ride Book, which allows him to transform into a stronger version of Calibur that grants him use of the familiar for combat assistance. After Kento became Calibur, "Jaou Dragon" gained the ability to seal the Seiken, which can only be undone if the owner is either fatally wounded or defeated.
Hayato Fukamiya.
 is the father of Kento and the first Swordsman of Darkness who left the Sword of Logos 15 years prior to the series and joined the Megids after learning the second Master Logos was a traitor and the Ankokuken Kurayami made him witness dark futures. While Logos manipulated Hayato into furthering his plans, the latter attempted to use Luna to expose Logos, only to be killed by Daichi.
Hayato Fukamiya is portrayed by .
Daichi Kamijo.
 is the previous Swordsman of Flames and the second Swordsman of Darkness. 15 years prior to the series, he saved Touma while confronting the original Calibur, Hayato, and killed him before he could fulfill his plans. Apparently sacrificing himself during the battle while sending Touma to Earth, Daichi left his "Brave Dragon" Wonder Ride Book with the boy.
Daichi eventually resurfaces in the present, having taken Hayato's place as the Swordsman of Darkness and defected to the Megids so he could "learn the truth of the world" and continue his fallen comrade's mission to expose Master Logos. After several battles with his successor, Daichi reveals his secrets to Touma and almost entrusts his Rider equipment to him before Desast mortally wounds the former while Reika steals his equipment.
Daichi Kamijo is portrayed by .
Kento Fukamiya.
 is Touma and Luna's childhood friend, son of Hayato, and a sage-class samurai who was originally the for the Sword of Logos' Northern Base before becoming the current Swordsman of Darkness. Behind his cheerful demeanor, he hides regrets for Luna's disappearance and his father's betrayal 15 years prior to the series, though he later discovers Hayato was killed by and lost his Rider powers to Daichi. After helping Touma recover his lost memories, Kento challenges Daichi to a duel to avenge his father, only to be defeated by him and consumed by the latter's sword. Following this, Touma acquires Kento's Rider equipment.
Trapped in the Ankokuken Kurayami, Kento discovers the current Master Logos' conspiracy and saw visions of various futures wherein the world is either destroyed due to the "Almighty Book" or saved by Touma following his death. Traumatized, Kento revives himself, steals the Calibur equipment from Reika, becomes the third Calibur, and goes rogue to avert the visions' events by sealing all of the Seiken. Eventually however, Touma and Yuri save Kento from himself and convince him to join them in stopping Master Logos. Despite being able to use his original Rider powers again, Kento retains the Calibur title to honor his father’s legacy.
As the Swordsman of Thunder, Kento utilizes the Wonder Ride Book in conjunction with the Seiken SworDriver and the knightly sword to transform into . While transformed, he gains electrokinesis and use of the familiar for combat assistance. Like Rintaro, he also owns a magical cellphone capable of transforming into a Ride Gatriker. He can also combine "Lamp Do Alangina" with other Wonder Ride Books and access the following forms:
Kento Fukamiya is portrayed by . As a child, Kento is portrayed by .
Desast.
 is a Fenrir/Japanese tiger beetle/"The Singing Bone"-themed hybrid Megid. 15 years prior, he took part in the Megids' invasion and killed several of the Sword of Logos' swordsmen before he was sealed in his self-titled Alter Ride Book. In the present, Daichi releases Desast so the latter can rejoin the Megids' fight against the Sword of Logos. However, Desast chooses to act independently instead. For reasons unknown, he has a strong connection to Kenzan.
Desast is voiced by .
Yuri.
 is an ancient swordsman known as the who once wielded the Ankokuken Kurayami and the swords millennia ago. After his friend Bahato went mad, Yuri was forced to seal him in the "Book of Ruin" before merging himself with the Kougouken Saikou and sealing himself in turn with the "King of Arthur" Wonder Ride Book in Avalon. After Touma reaches Avalon and claims "King of Arthur" in the present, Yuri is freed, gains the ability to project an illusion of his human form, and bears witness to Touma's struggles following Kento's apparent death at Daichi's hands from afar. After Touma defeats Daichi, Yuri approaches the former to warn him of a traitor within the Sword of Logos' Southern Base before helping him clear his name and convincing the Northern Base's swordsmen of the truth before joining them in stopping Master Logos.
Yuri utilizes the Wonder Ride Book in conjunction with the to transform back into the Kougouken Saikou, which became known as . While transformed, he gains photokinesis and is capable of fighting through telekinetic movements on his own, though he can also be wielded by a living silhouette called or another swordsman.
After creating the Wonder Ride Book, Saikou can transform into Saikou Shadow's armor and utilize three different modes called :
Yuri is portrayed by .
Megids.
The are monsters who tried to steal the "Greater Book" thousands of years ago before they were thwarted and renew their efforts in the present day. They also seek to recreate the world with the , which can be used instead of the "Greater Book", and summon foot soldiers to aid them in battle. The three commander Megids were originally the first humans to visit Wonder World and friends of Tassel, the original Master Logos, and a woman who connected Wonder World to Earth before becoming monsters.
Storious.
 is a reserved Megid who controls the genre of stories and took part in the Megids' invasion 15 years prior. He is initially tasked with stealing Touma's Rider powers for Daichi, showing interest in their plans as he values knowledge above all else. After Daichi's death, Storius attempts to steal the Sword of Logos' primitive tome and use its power for himself, only to lose it to Touma.
Storious is portrayed by .
Legeiel.
 is a calm, manipulative Megid who controls the genre of mythical creatures and took part in the Megids' invasion 15 years prior. Unlike his peers, he does not want to be actively involved, only lending his help when necessary. However, his pride often gets the better of him, especially when things do not go his way. After being defeated by Saber with the "Primitive Dragon" Wonder Ride Book, a frustrated and desperate Legeiel enhances his personal Alter Ride Book to evolve into and seek revenge despite the fatal side effects of his transformation. However, Touma as Saber Elemental Primitive Dragon destroys Legeiel in an act of mercy.
Legeiel is portrayed by .
Zooous.
 is a cruel, hot-headed Megid who controls the genre of animals. 15 years prior, he took part in the Megids' invasion and murdered Sword of Logos member, Kenshin Nagamine. As a result, Zooous developed a rivalry with the swordsman's student and successor, Rintaro. After evolving into while fighting Rintaro and Touma, the Megid faces the former while attacking the Northern Base and is destroyed by Rintaro as Blades Tategami Hyoujuu Senki.
Zooous is portrayed by .
Megid Combatants.
Megid Combatants are created by the three commander Megids from , which allow them to reappear so long as it is not destroyed. The commanders later utilize an ancient ability to turn humans who can see Wonder World into Megids, though if their Alter Ride Books are destroyed before the transformation becomes permanent, they will be separated from their host.
Bahato.
 is the and a former ally of Yuri's from millennia prior who first appears in the film "Kamen Rider Saber Theatrical Short Story: The Phoenix Swordsman and the Book of Ruin". Bahato was a Sword of Logos member until his family was slain by someone he considered a close friend before they became obsessed with power. After avenging his family, a deranged Bahato deems humanity irredeemable and attempts to erase the world using the until Yuri sealed him in it. During the events of the film, Bahato is released from the "Book of Ruin" and attempts to reenact his plan before Touma re-seals him. Late into the series, the current Master Logos frees Bahato once more to aid him in his plan to achieve godhood before re-sealing him in the "Book of Ruin" again after claiming his Rider equipment.
Bahato utilizes the Wonder Ride Book in conjunction with the and the knightly sword to transform into . While transformed, he gains nihilikinesis and use of the familiar for combat assistance.
Bahato is portrayed by .
Special episode-exclusive characters.
Kyoichiro Shinsen.
 was the previous Swordsman of Thunder and Kento's predecessor who was killed by Desast 15 years prior to the series. He appears exclusively in the prequel special, "Sword of Logos Saga".
Kyoichiro Shinsen is portrayed by 
Amane Kagami.
 was the previous Swordswoman of Wind and Ren's predecessor who was killed by Desast 15 years prior to the series. She appears exclusively in the prequel special "Sword of Logos Saga".
Amane Kagami is portrayed by .
Manga-exclusive characters.
Haruka Kiritani.
 is Ryo's wife and Sora's mother who met and befriended the former during their childhood. While attending Kagari High School together, Haruka became student council president and captain of the women's volleyball team in her senior year. Sometime after Ryo became the new Kamen Rider Buster, Haruka married him and gave birth to Sora. She appears exclusively in the tie-in prequel manga "Supplementary Volume Kamen Rider Saber: Kamen Rider Buster the Comic".
Toshikazu Kamikawa.
 was the previous Swordsman of Earth and Ryo's Japanese classics teacher at Kagari High School. He appears exclusively in the tie-in prequel manga "Supplementary Volume Kamen Rider Saber: Kamen Rider Buster the Comic".