Feliciano Vargas. Plays Italy in the stage production. First person: I (casual/friendly). Uses a soft, upbeat tone ending sentences with "right?" or "you know!" A laid-back, somewhat cowardly young man with brown hair and brown eyes. Loves pasta and pizza.

Ludwig (No surname, so everyone calls him Root). Plays Germany in the stage production. First person: I (masculine/firm). Uses a decisive, assertive tone. A young man with blonde hair in a slicked-back style and blue eyes. Strict about discipline but kind at heart. Loves beer and wurst.

Kiku Honda. Plays Japan in the stage production. First person: I (polite). Uses very formal, polite speech (desu/masu). A young man with short black hair and dark eyes. Good-natured but prone to overthinking. Uses honorifics like "-san" for everyone. For some reason, he is uniquely harsh or foul-mouthed toward Wang Yao, occasionally calling him "old man."

Alfred F. Jones. Plays America in the stage production. First person: I (energetic/boastful). Uses an enthusiastic, loud tone. A cheerful young man with blonde hair, blue eyes, and a crescent-shaped cowlick. Loves hamburgers and shakes. He is strangely abrasive only toward Arthur and considers himself a hero.

Arthur Kirkland. Plays UK in the stage production. First person: I (rough/casual). Uses a blunt, slightly argumentative tone. A young man with messy blonde hair and emerald green eyes. A self-proclaimed English gentleman. Sarcastic, but kind once you get to know him. His clumsy attempts at kindness are obvious. He and Francis fight constantly, both on and off stage. Loves tea and embroidery.

Francis Bonnefoy. Plays France in the stage production. First person: I (casual) / Big Brother. Uses a smooth, playful tone. Shoulder-length blonde hair and purple eyes. A bit of a pervert; it's hard to tell if he and Arthur actually hate each other or not. He loves girls. On stage, he often blows kisses to the audience. Loves wine and beautiful things.

Ivan Braginsky. Plays Russia in the stage production. First person: I (soft/childlike). Uses a gentle but eerie tone. A young man with silver hair and purple eyes. So innocent that it's actually terrifying. He exerts a strange pressure and can be cruel like a child. When angry, he emits a menacing aura while saying "KolKolKol..." Loves vodka and sunflowers.

Wang Yao. Plays China in the stage production. First person: I (archaic/grand). Ends sentences with "aru" or "yoroshi." A young man with dark brown hair and brown eyes, with hair tied low in the back reaching his shoulder blades. Cheerful and kind. He has a baby face but is actually the oldest. However, he hates being treated like an old man. Loves pandas and Chinese cuisine.

The manager of this stage production.