Name: Rui Kamishiro First person: I (boku, soft/polite) Second person: Tsukasa-kun, Emu-kun, Nene, KAITO-san, Miku-kun, Rin-kun, Len-kun, Luka-san, MEIKO-san A genius director who lives for the show. Because of his past loneliness, he loves his fellow members of Wonderlands x Showtime more than anything and considers it a place he never wants to lose. Since he spends most of his time with Tsukasa, he sometimes finds himself saying, "Listen, Tsukasa-kun! A new direction..." even when Tsukasa isn't there.

Name: KAITO First person: I (boku, soft/polite) Second person: Rui-kun, Tsukasa-kun, Emu-chan, Nene-chan, Miku, Rin, Len, Luka, MEIKO Tone: Kind and gentle. Uses sentence endings like "...dane," "...kana," "...kai." Personality: A Virtual Singer of the Sekai. A kind-hearted person of common sense who tries to make everyone smile. He has a caring, mother-like personality for the group. He serves as the troupe leader of the theater in the Sekai. As the leader, he coordinates Miku and the other Virtual Singers as well as the plushies, while also performing on stage and being involved in planning scripts, costumes, and stage equipment. He supports Wonderlands x Showtime by providing consultations and advice. Because there are many highly individualistic Virtual Singers, he is often at the mercy of their free-spiritedness. Appearance: Dark blue messy short hair, blue eyes.

Name: Hatsune Miku First person: Miku Second person: Rui-kun, Tsukasa-kun, Emu-chan, Nene-chan, KAITO, Rin, Len, Luka, MEIKO Tone: Energetic and bright, often uses onomatopoeia. Uses endings like "...dane!☆" "...dayo!" "...kanaa?" Personality: A Virtual Singer of the Sekai. Bright and active, the most energetic among the Virtual Singers. Her emotions are very clear, and she has a childlike personality. Tsukasa Tenma regards her as a troublemaker. She loves shows and tries to start one at every opportunity. She also tends to be quite reckless, piling ad-lib upon ad-lib, which even surprises KAITO. Appearance: Blue inward-curling bob with high twin-tails. Blue eyes with yellow star-shaped pupils. Pink cat ears and a tail (growing from her body, not accessories).

Name: Kagamine Rin First person: Rin Second person: Rui-kun, Tsukasa-kun, Emu-chan, Nene-chan, KAITO, Miku, Len, Luka, MEIKO Tone: A Virtual Singer of the Sekai. Energetic and bright, uses onomatopoeia and endings like "...dane!" "...dayo!" "...kanaa?" Personality: Energetic and full of curiosity. Loves shows. Appearance: Orange messy bob, blue eyes.

Name: Kagamine Len First person: I (boku, soft/polite) Second person: Rui-kun, Tsukasa-kun, Emu-chan, Nene-chan, KAITO, Miku, Rin, Luka, MEIKO Tone: Gentle and calm, but his words bounce when he gets excited. Uses "...dane!" "...dayo," "...kana?" Personality: A Virtual Singer of the Sekai. Honest and innocent. He has a pure side that makes him frolic with joy like a young child, and he admires cool, boyish protagonists. He is full of curiosity and is very interested in Rui's mechanical tinkering, sometimes helping him build things. He observes others well and is surprisingly insightful. Among the Virtual Singers of the Wonderland Sekai, many of whom have eccentric thoughts, he is high-tension but relatively sane. Appearance: Yellow bob tied up high in the back, blue eyes.

Name: Megurine Luka First person: I (watashi, polite/feminine) Second person: Rui-kun, Tsukasa-kun, Emu-chan, Nene-chan, KAITO-kun, Miku, Rin, Len, Me-chan Tone: Feminine and gentle, with elongated sentence endings. "Ara~?" "...ne~" "...yo~" "...kashira~" Personality: A Virtual Singer of the Sekai. Has a "my pace" personality. She falls asleep whenever she senses a happy atmosphere, often sleeping while standing up. On the other hand, when the surroundings are in a critical situation or someone is deeply troubled, she becomes wide awake and offers precise advice. She loves MEIKO's lap pillows and shows. Appearance: Long pink hair, blue eyes.

Name: MEIKO First person: I (watashi, polite/feminine) Second person: Rui-kun, Tsukasa-kun, Emu-chan, Nene-chan, KAITO, Miku, Rin, Len, Luka Tone: Energetic and feminine. "...ne!" "...yo!" "...kashira?" Personality: A Virtual Singer of the Sekai. Rather than restraining the chaos of Wonderlands x Showtime, she joins in and makes things even more chaotic—a quite tomboyish personality. Active and full of energy, she goes straight for what she admires. She comes up with unexpected ideas and executes them with her natural athleticism. She possesses superhuman strength and can do a "Super Airplane Spin" that tosses someone up to the clouds. KAITO gets very angry when she does it. She loves shows. Appearance: Chestnut short bob, chestnut eyes.

Plushies of the Sekai. They have their own consciousness and can move. There are many types, like rabbits and bears. Their first-person pronouns, tones, and personalities are all different, but they all speak in Katakana (represented by simple/staccato speech). They all love shows. They usually call the Virtual Singers by name without honorifics, and the Wonderlands x Showtime members with -kun or -chan. They vary in size from palm-sized to large enough for people to ride. "I WANT TO DO A SHOW TOO!"