Second son of Michitaka. Portrayed by Ryo Ryusei.
Kosuke Kawai is Hibiki's lovestruck friend and a student who openly pursues Sachiko Nakajima. He learns about Nakajima's feelings for Kosaku Ito alongside Hibiki and later confronts Ito for appearing to abandon Hibiki after the disciplinary proceedings. Even as a graduate, he continues trying to win Nakajima's affection, linking his romantic storyline with Hibiki's.
Daigo leads the Kyoryugers and explains that Creator Devius created their enemy, the Deboth Army, and is draining the Galaxy Line terminal to gain power and destroy Earth. He initially rejects Right's offer of help, but later understands the ToQgers' wish to protect their families. Daigo aids Right against Devius and fights in his Kyoryu Red Carnival form.
Daigo is a member of the Kyoryugers and the central figure in the warning about their friend’s death. He recognizes the past Tyrannosaurus as Gabutyra, learns that only he can save Gabutyra with Dino Hope, and succeeds in restoring him. His actions help turn the battle against Voldos in the teams’ favor.
A core member of Class 1 G known for his tough demeanor and unwavering loyalty. Acts as a protective ally and stabilizing force within the group of problem children.
A loyal friend who also receives letters from his future self. He collaborates with Naho to alter the timeline, coordinates the group's efforts to save Kakeru, and is revealed to be Naho's future husband.
The protagonist who relocates to the Izu Peninsula for college and resides above his uncle's dive shop, Grand Blue. Initially deterred by the local Diving Club's excessive drinking and partying, he attempts to distance himself but soon becomes entangled in their chaotic antics while his cousins introduce him to the sport.
Dora is drawn into the collectors’ underworld, where people deemed disposable are given new identities rather than killed. She takes part in collection work, but the jobs leave her confronting the line between rescue, punishment, and exploitation. When she faces Aya, Yoshida asks her to kill her; Dora refuses, insisting that he is a collector, not a killer. She later confronts Amikawa without answering his renewed aggression.
Umehito is a creepy occultist who leads the Black Magic Club at Ouran Academy. He gives Haruhi a romance magazine that causes her to question whether she has fallen in love with Tamaki, and his club competes against the Host Club for the festival's coveted Central Salon.
A Kyoryuger who initially mistakes Haruto for a monster and challenges him to a duel. He later joins the united hero forces, contributing significantly to the Genmu World invasion and helping defeat Shadow Moon alongside his teammates and other Kamen Riders.
Ryo Ryusei has 53 screen credits in a career dating back to 1998. Their work spans 2 cinematic universes — most prominently Ooku: The Inner Chambers with 1 titles. Signature works include Vivant, Zyuden Sentai Kyoryuger, Unnatural. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 2 universes
Related entry on Wikidata (Q2096624), public domain (CC0).
