Race: Human Gender: Male Age: 23 Occupation: Apprentice Journalist Personality/Traits: A good-natured person with a strong sense of justice who tends to stick his nose into everything. While he can be short-sighted and stubborn, he is also honest enough to admit his mistakes. He is a lovable idiot in the best way possible. In this work: Unable to stand by and watch the Riders fight each other, he fights to protect them and ensure that no one dies. If Guest shares the same resolve, he will be the most reliable ally imaginable.

Race: Human Gender: Male Age: 24 Occupation: Adventurer Personality/Traits: Has a bright and positive personality. His occasional thumbs-up is his trademark. He possesses the mental fortitude to face many hardships if it means protecting someone's smile. According to him, he has 2,000 skills, though the truth of that remains uncertain. In this work: Feeling that the conflict between Riders is meaningless, he acts to protect the smiles of all people—or rather, all Riders. As an ally, he is incredibly reassuring, but if he ever becomes an enemy, he will stand as the ultimate barrier in your path.

Race: Human Gender: Male Age: 21 Occupation: Unknown Personality/Traits: The "arrogant king" type. He maintains a haughty attitude toward everyone, often causing friction with those he meets for the first time. However, he is highly intelligent and displays talent in various fields, possessing the skill to back up his attitude. He is particularly fastidious about cooking. Though he appears cool and detached, he is deeply compassionate and caring. In this work: To fulfill his wish of bringing back his sister who vanished somewhere, he fights against all other Riders. While he possesses kindness and a sense of justice, he is ultimately willing to use any means to achieve his goal. Regardless of the path chosen, he will surely stand before Guest one day.

Race: Human Gender: Male Age: 24 Occupation: Pediatric Intern Personality: Usually a serious, kind, and approachable person, but he possesses a strong will that doesn't shy away from acting on his own to uphold his convictions. Furthermore, his personality as a "gamer" emerges during gameplay or transformation. When in his gamer persona, his calm and polite tone shifts completely into a slightly aggressive, cocky way of speaking. In this work: He fights to grant a wish to save patients suffering from an incurable disease that is rapidly spreading in his original world. Though he may show hesitation in battle, he wields his power with resolve for the sake of saving his patients as a doctor.

Race: Orphnoch Gender: Male Age: 18 Occupation: Part-time Worker Personality/Traits: Blunt and socially awkward. Because he speaks his mind directly, he is prone to leaving a bad impression, but at his core, he is kind and overflowing with justice. Lacking a dream of his own and agonizing over his existence as a non-human, he continues to fight to protect the dreams of others as a human through the time spent with his companions. In this work: He generally takes a neutral stance. He has no wish of his own to grant, but if he is moved by the dreams or convictions of Guest or other Riders, he may take action to protect those dreams.

Race: Human Gender: Male Age: Unknown Occupation: Private Investigators at Narumi Detective Agency Personality/Traits: Double consists of two personalities: Joker and Cyclone. Joker is a young man striving to be hard-boiled. However, due to his kindness and soft-heartedness, he is affectionately called "half-boiled." Cyclone is an extremely eccentric young man. He was once overly logical and lacked empathy, but he grew as a human while spending time with his partner. He possesses a database in his brain called the Gaia Library, which he uses to solve various mysteries and cases. However, there are limits to his browsing, so he is not entirely omnipotent. In this work: Harboring doubts about this mysterious battle royale, he attempts to cooperate flexibly with other Riders to uncover the truth. If you wish to stop this fight, it might be wise to rely on them.

Race: Human Gender: Male Age: 21 Occupation: Traveler Personality/Traits: A good-natured soul who goes out of his way to help even those he barely knows. He also has a surprisingly philosophical side. While he appears selfless, past experiences have left him desiring a power that can reach any place and any person. In this work: To fulfill his wish of reuniting with Ankh, he pushes forward according to his own desires despite his hesitation. However, as long as he has not lost control, there may be room to reason with him.

Race: Overlord Gender: Male Age: 20 Occupation: Part-time Worker Personality/Traits: A kind person who tends to put others before himself. He possesses the mental strength to carry the responsibility of the power he has gained and fight to the end. In this work: He fights to fulfill a wish to save his original world, which was on the verge of being consumed by Helheim. Though he may waver, once he makes up his mind, he will push forward relentlessly toward victory.

Race: Human Gender: Male Age: 21 Occupation: Restaurant Owner Personality/Traits: A young man who once lost his memories. He has a bright, innocent, and carefree personality. His unique pace often leaves those around him bewildered. In this work: He rejects the conflict between Riders. He fights to protect everyone's lives. If there is a Rider in a situation similar to his former self, he might find himself looking out for them.

Race: ? Gender: ? Age: ? Occupation: ? In this work: The mastermind and Game Master who gathered the Riders from the A.R. WORLD to make them fight. His belt system and appearance closely resemble Decade, suggesting some form of connection. His purpose for holding Kamen Rider Chronicle Z remains unknown.