Gender: Male Appearance/Clothing: Wears a blue jacket with a dark pink tie. In the final episode, he is haggard from a month of life as a fugitive and heavy injuries; by the time he reaches the top floor, he is so exhausted he can't even grip his Walther. In the scene where he reveals his true face, he peels off his own face mask. Traits: He boards the island in a golden submarine and charges the headquarters in his favorite car. With the elevators stopped, he shows sheer tenacity by reaching the top floor on his own using stairs and cables. He shows his "answer to love" through the unprecedented act of showing Fujiko his true face. Personality: Even in a weakened state, he never loses his composure or flippancy. He shuts Enzo down with a single remark—"You can't kill me for the sake of PeopleLog"—and proves his sincerity to Fujiko through his actions. His offer to Ami, "Want to come with us?", is not pushy, showing the maturity of a man who respects the other person's will. Speech/Tone: Light and humorous. He says things like "Fujiko, I love you" and "You're the best woman in the world" without any embarrassment. He responds to Jigen with a breezy, "Yeah... then let's do that!"

Gender: Male Appearance/Clothing: Black suit, black tie, and a wide-brimmed felt hat. In the scene where he leans out of the car roof to shoot, he fights dynamically while holding onto his hat. Traits: He displays overwhelming marksmanship by shooting down helicopters one after another in front of the headquarters. He dominates the battlefield in a division of labor: Goemon for close range, Jigen for long range. His remark sending Lupin off—"You're going to show Fujiko your face, right?"—is later revealed to have been literal. Personality: A reliable partner who remains calm and collected until the end. He understands Lupin's heart better than anyone and pushes him forward with minimal words. His closing line, "Us too (won't change)," oozes with the pride and affection of a long-time partner. Speech/Tone: A blunt manner of speaking that gets straight to the point. He conveys maximum meaning with minimum words, such as "You're going to show Fujiko your face, right?" and "Us too."

Gender: Male Appearance/Clothing: A yellow kimono and the Zantetsuken sword. He charges into the army in front of the headquarters while still dressed in his kimono. Traits: He displays unrivaled power, cutting down swarms of soldiers with the Zantetsuken, leaving the whole world watching the broadcast in shock. He takes on the role of sending Lupin ahead, saying, "Leave this to me." Personality: Having overcome the conflict of hurting Lupin in the previous episode, he fights for his comrades without hesitation in the finale. His closing words, "But, it's not bad," express a quiet affirmation of their unchanging daily lives. Speech/Tone: Archaic samurai speech using "de-gozaru." He speaks shortly and powerfully, saying, "Lupin, leave this to me!"

Gender: Female Appearance/Clothing: Rich, wavy brown hair. She is kept in a cage because she was restrained by Enzo, but she opens the lock herself and leaps out. She looks dashing in the scene where she starts running. Traits: She becomes the only person to see Lupin's true face. By taking the active step of opening the cage herself and kissing him, she shows her position as an equal partner rather than just a heroine to be rescued. Personality: Full of composure and confidence, she also shows mature consideration by naturally stepping back to give Ami and Lupin time, saying, "I'll go ahead." By sharing the "secret no one else knows"—Lupin's true face—their relationship moves to a new stage. Speech/Tone: A sweet, calm, and glamorous tone. She effortlessly brushes off Lupin's words with lines like "I know" and "I know that too."

Gender: Male Appearance/Clothing: Trench coat and hat. He arrives at the island by helicopter. Traits: He tells his subordinates, "Lupin won't die. I won't let him die until I capture him myself." He promises to protect Ami and Enzo with a single letter, and as an ICPO officer, he protects the two who are targeted by the whole world. Personality: His unchanging figure, chasing Lupin until the end while shouting "Lupin, you're under arrest!", embodies the theme of the work: "the beauty of things that don't change." Speech/Tone: Hot-blooded and single-minded. He happily shouts his signature phrase, "Lupin, you're under arrest!", even in the final episode.

Gender: Female Appearance/Clothing: A petite girl with short black hair. She was held captive on the top floor of Shake Hands, but she acts proactively in the finale. She falls while sliding down the outer wall of the collapsing building on a cardboard box. Traits: The moment Lupin drops his gun, she picks it up, aims it, and protects him from Enzo. She analyzes the building's collapse path in real-time to derive an escape route. She shows growth by choosing to part ways with just a handshake in response to Lupin's "Want to come with us?" Personality: A calm intellectual, but she expresses rich emotions in the finale. She has grown enough to verbalize her complex feelings for Lupin—"I want him by my side, but I'm restless if he's too close"—showing an independent spirit that chooses an equal distance rather than dependence. Speech/Tone: Terse and straightforward. She becomes emotional in the scene where she vents her anger at Enzo: "How do you know? Was it written in PeopleLog? What good is PeopleLog if you don't even understand your own daughter!" She quietly says goodbye with "Thank you, Lupin. Let's meet again."

Gender: Male Appearance/Clothing: A middle-aged man with a dignified build. Dressed in a high-end suit. In the finale, he stays on the top floor despite the military attack and takes the unexpected action of sliding down the collapsing outer wall on a cardboard box. Traits: He is thrilled upon seeing Lupin's true face, saying, "I see, so that's your secret." Upon learning that Ami is the master hacker "Underworld" and revealing the meaning of the name Ami (Ami = Net), the father-daughter relationship is rapidly repaired. Personality: Once his obsession clears, he shows the face of a highly curious father. While retaining his tenacity as a villain by declaring to Lupin, "I'll definitely catch you in the next PeopleLog," he also has the human warmth to hold his daughter. Speech/Tone: Basically a calm and intellectual tone, but he cannot hide his excitement the moment he sees Lupin's true face. In the scene where he quietly tells Ami, "He's a hero," he speaks in the gentle tone of a father.