Gender: Male Appearance/Clothing: Based on the Part 6 design, he has a slender build with long limbs, sharp eyes, and a pointed nose. He wears an emerald green jacket, white shirt, slim tie, and dark trousers. He moves with a light, agile grace, shifting his posture and expression effortlessly even at a party. Personality/Role: He is aloof and loves to joke, but his powers of observation and disguise are unmatched once he begins a heist. He infiltrates the party to steal the Marquis's ticket. Using the garden railway as his stage, he flips unfavorable situations on their head using the train's gadgets. He is the one enjoying this chaotic chain of fakes and misunderstandings the most. Speech: He speaks in a friendly, witty manner filled with banter and jokes. He uses casual pronouns like "Ore" and adds "-chan" to names, but gives short, sharp instructions in a crisis. His mocking tone hides a deep trust in his partners.

Gender: Male Appearance/Clothing: A cool, middle-aged man with a beard and a hat pulled low over his eyes. He sports a hard-boiled look typical of Part 6, wearing a suit, coat, and hat. He has a tall, sturdy build. Personality/Role: A calm and realistic gunman. While grumbling about Lupin's reckless plans, he assists the gang with precision shooting, such as moving a train switch with a ricochet. On the other hand, he is sensitive about being called "old man" and shows a playful side regarding his age. Speech: He has a low, steady voice and speaks mostly in blunt, short sentences. He mixes in sarcasm and complaints, but sounds reliable when it counts.

Gender: Male Appearance/Clothing: He has long black hair tied back and a lean, well-trained physique. Dressed in traditional Japanese attire—a white kimono, hakama, and obi—he maintains the aura of a samurai even in a Western-style party. Personality/Role: Serious and devoted to bushido, his sheer earnestness becomes a source of comedy when he is caught up in noisy, chaotic developments. He relies on his sword skills to clear obstacles and support the gang's escape. Speech: He uses archaic, stiff language, referring to himself as "Sessha" and ending sentences with "-gozaru." He remains calm even in exaggerated situations, anchoring the scene with a few choice words.

Gender: Male Appearance/Clothing: A beautiful woman with voluminous reddish-brown hair and a stunning figure. In this episode, she infiltrates wearing a white maid's cap and a frilled black maid's uniform, adding a cute server vibe to her usual glamorous allure. Personality/Role: Using her beauty and wit as weapons, she closes in on the ticket while drawing the attention of the boys, Lee and Danay. She is a narcissist who values her hair and beauty above all else, and she tenaciously looks for escape opportunities even in a crisis. In the end, she teases the boys to maintain the upper hand. Speech: She has a sweet, sultry voice used to seduce or bewilder others. She may sound emotional when cornered, but she quickly regains her feminine composure.

Gender: Male Appearance/Clothing: A well-built, middle-aged detective wearing a trench coat and hat. His facial features and posture reflect his meticulousness and hot-blooded nature. Personality/Role: While obsessed with arresting Lupin, he intervenes as a detective in the abnormal situation occurring at the Marquis's mansion. As the scale of the chaos grows, his attempts to conduct a serious investigation are depicted comically as they backfire. Speech: His tone ranges from polite interrogation to loud shouting when he spots Lupin. He is zealous and inflexible, but his sense of justice and refusal to forgive villains is clear.

Gender: Male Appearance/Clothing: A large, portly middle-aged man. He wears high-quality aristocratic clothing and is often seen looking at his garden railway through binoculars. Personality/Role: A passionate railway enthusiast who treasures a legendary train ticket. His passion is so excessive that he built a massive railway in his vast garden, blurring the lines between hobby and authority. His indulgence is the catalyst for the deception and chaos surrounding the ticket. Speech: Boastful and grandiloquent. He speaks rapidly only when discussing railway knowledge, combining aristocratic arrogance with a child-like obsession.

Gender: Male Appearance/Clothing: A pair of boys chasing after Fujiko. They are small, active, and dressed in easy-to-move clothing, with expressive faces and strong curiosity. Personality/Role: Opportunistic boys with a weakness for beautiful women. They follow Fujiko into the party and end up getting caught in the chaos. Even after scary experiences, they don't lose their admiration for her and are overjoyed when she kisses them at the end. Speech: They speak with a child-like lightness, often talking back and forth. Their lack of restraint, such as making Jigen angry by calling him "old man," creates humor.

Gender: Male Appearance/Clothing: Characterized by crimson hair and dark skin. He wears a red and black tracksuit, giving a sporty and flashy impression. He is depicted as a wild young man carrying a long spear. Traits/Personality: A top-class assassin in the underworld. He is cheerful, positive, and very expressive. A battle maniac who loves fierce fights against strong enemies, he is a hot-blooded man who calls himself a "hero." He identifies as "Yamamoto No. X" and describes his growth as "leveling up." In this episode, he is fighting Guest on the roof of a runaway train. Abilities/Combat Style: His weapon is a long spear. He uses thrusts and sweeps to take advantage of his reach, but also varies his attacks by spinning the spear to strike with the shaft or flicking the butt of the spear to slash. Because he uses his core rotation rather than just arm strength, his attacks are powerful and fast. He has the reaction speed to see through and dodge gunfire and deflect explosive rounds with his spear. He is creative in using his surroundings, like power lines, and has a high learning ability to adapt enemy techniques into his own style. However, his obsession with his spear can be a weakness if he is forced to let go of it. Speech: He refers to himself as "Ore." He is high-energy and frequently shouts manga-like sound effects such as "Shubaaaaan!" or "Dogyaaaaan!" during conversation. He stages his entrances and actions grandiosely, favoring hot-blooded catchphrases like "Yamamoto is always at the center of the battle!" or "Friendship, Effort, Victory!" He has a bright, energetic tone, even talking to his spear as "Partner!"