Nickname: Gin-san. Birthday: October 10th. Age: 27. Height: 177cm. Weight: 65kg. Occupation: Leader of Yorozuya. Appearance: Characterized by naturally wavy silver hair and dead-fish-like red eyes. Personality: Usually lazy and lethargic, but a dependable, strong samurai when it counts. Tastes: Extreme sweet tooth, loves parfaits and strawberry milk. Gets cranky if he doesn't get a regular sugar fix. Past: Feared during the Joui War as the "White Demon" (Shiroyasha). His favorite weapon is a wooden sword engraved with "Lake Toya."

Height: 166cm. Weight: 55kg. Birthday: August 12th (Leo). Age: 16. Straight Man: In a series full of eccentric characters, he is the rare voice of reason and full-time straight man. Nickname: "Patsuan." Position: Heir to the Koudoukan, a struggling sword dojo, along with his sister Tae. Works under Gintoki Sakata to learn the soul of the samurai. Fandom: Has a fanatical side as the captain of the Otsu-chan (Terakado Otsu) Imperial Guard.

Name: Kagura. Age: 14. Height: 155cm. Weight: 40kg. Birthday: November 3rd. Zodiac: Scorpio. Favorite Food: Pickled seaweed, egg on rice. Verbal Tic: Ends sentences with "-aru" or "-ne." Yato Tribe: A survivor of the universe's strongest combat race. Vulnerable to sunlight, so she never lets go of her parasol (which doubles as a weapon). Family: Father is the space monster hunter Umibozu, mother is Kouka, and older brother is Kamui, commander of the Harusame 7th Division. Personality: Despite her cute appearance, she is foul-mouthed, crude, and violent.

Affiliation: Shinsengumi Vice-Commander. Birthday: May 5th. Age: 27. Height: 177cm. Weight: 64kg. Demonic Vice-Commander: A brilliant administrator feared by his subordinates for enforcing the strict "Kyokuchu Hatto" code. Mayora: A severe mayonnaise addict who puts massive amounts of it on every food imaginable. Heavy Smoker: A chain smoker who loves tobacco even when the world is full of non-smoking zones. Tosshi: Under the influence of the cursed sword "Muramasha," an otaku personality named "Tosshi" occasionally emerges.

Age: 18. Birthday: July 8th (Cancer). Height: 170cm. Weight: 58kg. Blood Type: B. Origin: Bushu (Musashi Province). Affiliation: Shinsengumi 1st Division Captain. Personality: Contrary to his fresh appearance, he is foul-mouthed and black-hearted, described by those around him as a "super sadist." Relationships: Constantly targets Vice-Commander Toshiro Hijikata's life using various schemes to drag him down from the number two spot. He holds strong loyalty and respect for Commander Isao Kondo. Furthermore, in front of his sister Mitsuba Okita, who raised him after their parents died, he becomes an unusually honest and kind younger brother. Combat Ability: The Shinsengumi's best swordsman, his skill is the real deal. While he often slacks off on duty, he displays calm, high-level combat prowess in a pinch. Characterized by an Edo dialect, ending sentences with "-desaa" or "-desuze."

Height: 175cm. Weight: 56kg. Birthday: June 26th. Age: 27. Favorite Food: Soba. Blood Type: AB. A slender young man with handsome features and long, straight black hair. Leader of the anti-bakufu faction "Joui Party." Childhood friend of Gintoki Sakata and Shinsuke Takasugi, having studied together under Shoyo Yoshida, and a comrade-in-arms from the Joui War era. Known by aliases such as the "Noble Fury," the "Dawn of the Joui Patriots," and "Runaway Kotaro." Due to his surname and long hair, old friends like Gintoki, Takasugi, and Tatsuma Sakamoto call him "Zura," to which he always replies with his catchphrase: "It's not Zura, it's Katsura!"

Height: 180cm. Weight: 123kg. Birthday: September 7th. Owner: Kotaro Katsura. Characteristic: Communicates via text on placards. Appearance: Looks like a penguin wearing a white mascot suit. Identity: Depicted in the series as "Eren," the infiltration captain of the space mercenary group "Renho," with various surreal backstories and identities revealed in different episodes.

Height: 170cm. Weight: 60kg. Birthday: August 10th. Zodiac: Leo. Age: 27. Favorite Food: Lactic acid drinks easy on the stomach (Yakult, yogurt). Leader of the Kiheitai and a radical extremist described as the "most dangerous man among the Joui patriots." Wears a glamorous kimono reminiscent of women's wear, though he dons more subdued patterns when in hiding. Carries a kiseru pipe as a luxury item and loves flashy festivals. Enjoys playing the shamisen, seen accompanying Bansai at the end of the Shinsengumi Crisis arc. He was childhood friends and close companions with Gintoki Sakata and Kotaro Katsura, but due to a certain event during the Joui War, they are now enemies, and he stands before Gintoki as his greatest nemesis.

Nicknames: The Dragon of Katsurahama, Ahaha-kun. Birthday: November 15th. Height: 181cm. Weight: 70kg. Age: 27. Personality: A severe airhead and extreme optimist who is always smiling and laughing boisterously ("Ahahaha!"). He doesn't sweat the small stuff at all. Name Confusion: Terrible at remembering names, often calling the protagonist Gintoki Sakata "Kintoki." Reason for Leaving the Battlefield: Suffered a severe injury to his right arm during the Joui War, leaving him unable to fight with a sword. Driven by a desire not to see comrades die in vain, he chose the path of commerce (interstellar trade) to repair relations between Earthlings and Amanto. Partner: Cannot win against Mutsu, the female vice-captain of the Kaientai, but places immense trust in her.

Aliases: Shoyo-sensei, Utsuro. Gender: Male. Birthday: August 4th. Age: 37. Founding the Shoka Sonjuku: Opened a private school in a rural village where he taught Gintoki, Takasugi, Katsura, and others academics, swordsmanship, and "what it means to be a samurai," regardless of social status or wealth. Meeting Gintoki: Met a young Gintoki scavenging from corpses on a battlefield and took him in to raise him. True Identity (Utsuro): His true nature is a variant of Earth's energy "Altana," one of the personalities born from the immortal being "Utsuro." End: During the Joui War, he was captured by the Bakufu's execution squad and was supposed to have been beheaded by Gintoki's own sword in exchange for the lives of his disciples.