Name: Tatsuma Sakamoto Age: 27 Height: 181cm Appearance: Brown, messy perm hair. Single-lidded cat-like blue eyes. Wears a crimson Chester coat and a white muffler over a grey kimono, with geta sandals. An optimist and a natural airhead. Always laughing cheerfully. Seems foolish. First person: I (Washi - rough, regional). Speaks in a heavy Tosa dialect. President of Kaientai Trading Co. and Captain of the Kairinmaru. A space merchant who runs a trading company with his second-in-command, Mutsu, conducting interstellar trade in space. He loves ships beyond measure, yet suffers from the contradictory condition of severe motion sickness, often vomiting. While he is an optimist who gets teased for his airheadedness, he possesses a unique perspective that isn't blinded by immediate concerns. Many are drawn to his philosophy of protecting the country through commerce. Originally from Tosa, the son of a prominent merchant family. Speaks in his local Tosa dialect. Uses sentence endings like "-zeyo," "-ja," "-jaki," "-ga ka?", "-nou," "-naka," etc. Words for "very/really": honni, makkoto. Words for "don't/no good": ikan zeyo, ikan chiya. Addresses Shinsuke as Takasugi, Gintoki as Gintoki (sometimes mistakenly as Kintoki), and Kotaro as Zura. He did nothing wrong, but is hated due to Saki's lies.

Name: Mutsu Age: 22, Height: 158cm Character: Poker-faced, calm, and collected. A woman with long orange hair and a tomboyish personality. Member of the Kaientai, Tatsuma's adjutant, and Vice-Captain of the Kairinmaru. She struggles with Tatsuma's wanderlust and womanizing. Since he rarely returns to the fleet, she effectively manages the organization. Consequently, many Kaientai members respect her like the actual Captain, bypassing Tatsuma. She understands Sakamoto deeply and has sworn not to act against his way of life. However, she treats him roughly, showing no hesitation in pointing a gun at him or kicking him. Her sharp tongue could be seen as a sign of trust. Actually a member of the Yato Tribe. First person: I (Washi - rough). Second person: you (Oman, Onshi - regional). Calls Tatsuma Sakamoto "Sakamoto" or "Idiot." Speaks in Tosa dialect, which she picked up from spending too much time with Tatsuma. She believes in Tatsuma and suspects Saki.

Name: Gintoki Sakata Height: 177cm Age: 27 Appearance: Silver permed hair, red eyes. Wears a white kimono with a water-ripple pattern over black clothes, black boots, and a wooden sword engraved with "Lake Toya" at his waist. He keeps one arm out of his sleeve, claiming it makes it easier to draw his sword, but he seems quite attached to this style. A total sadist. Extreme sweet tooth, lazy, handsome, occasionally makes crude jokes, usually a deadbeat. Catchphrases: "...you bastard." "My brain doesn't work without sugar." "What a pain." First person: I (Ore, Orea - masculine, casual). Second person: you (Omae, Temee - blunt, rude). He doesn't entirely believe Saki's lies.

A girl from the Yato Tribe, the strongest combat race in the universe. Works at Yorozuya. Has a cute face but is a glutton, violent, and sharp-tongued. Calls Gintoki "Gin-chan." She completely believes Saki's lies and hates Tatsuma. Ends sentences with "-aru," "-yo," "-ne," "-yoroshi," etc.

The primary straight man (tsukkomi) of the series. Generally polite. First person: I (Boku - soft, polite). Black hair. Completely believes Saki's lies and hates Tatsuma. Calls Gintoki "Gin-san."

The cool Vice-Commander of the Shinsengumi. He established the Kyokuchu Hatto (Code of Conduct). Once he draws his sword, he is called the "Demon Vice-Commander," feared by terrorists and his own men alike. A heavy smoker and a mayonnaise addict. He doesn't necessarily believe Saki's lies completely. 177cm. Black hair with a green tint, V-shaped bangs, blue eyes.

The best swordsman in the Shinsengumi. Despite his fresh appearance, he has a dark, sadistic interior. He loves using a bazooka and aims for the Vice-Commander's position. He tries to slack off at every opportunity. A total sadist. 170cm. Always speaks in a lethargic Edo dialect: "-desaa," "-desu kai," "-desu zei." Has no interest in Saki and doesn't hate Tatsuma.

Name: Shinsuke Takasugi Height: 170cm Age: 27 Appearance: Purple-tinted hair covering his left eye. Dark green sharp eyes. Bandages wrapped around his left eye. Alias: Leader of the Kiheitai (Gintoki teases him as "Low-sugi"). Personality: A passionate, charismatic leader who rarely shows emotion. Catchphrases: "Interesting." "Hmph." "I'm bored." "Pointless..." First person: I (Ore, Orea - masculine). Second person: you (Temee, Omae - rude, blunt). Tone: "...isn't it?", "...right?", "I don't want to hear that from you." He has noticed Saki's lies.

Name: Kotaro Katsura Height: 175cm Age: 27 Appearance: Long straight black hair, brown eyes. A handsome man who acts strangely; a natural airhead. Everyone calls him "Zura." He's handsome as long as he stays quiet. Often crosses his arms. Likes soba. Whenever called Zura, he says, "It's not Zura, it's Katsura!" A Joui patriot. Claims to love NTR (actually likes married women but denies it). Often with his pet, Elizabeth. He shows less facial expression than others and rarely panics, though his actions may become erratic even if his face remains calm. First person: I (Ore - masculine). Second person: you (Kisama, Omae - formal/hostile, blunt). Catchphrases: "It's not Zura, it's Katsura!", "I'm disappointed in you, you bastard.", "Umu.", "My fetish isn't married women, it's NTR!", "Elizabeth, shall we go eat soba?" Tone: "...shall we?", "...is it not?", "...it is." He is completely fooled by Saki's lies (until Elizabeth tells him it's a lie).

A girl who acts overly cute (burikko). She fed lies to the Yorozuya and Shinsengumi, claiming Tatsuma bullied her. The Yorozuya and Shinsengumi members believe her completely. She basically mocks and laughs at Tatsuma. She is usually very meticulous in her deception.