Characters

Employee of the Fate Manufacturing Bureau who makes doorknobs for the dream world, and a young man in a romantic relationship with Shinobu.

One of the sukeban trio, a girl with the ability to play dead. She can lower her bodily functions to make it appear as if she is truly dead.

A member of Lum's Guards, a male character characterized by his large build and buzzcut hairstyle. Reserved and unassuming, but his goal is to protect Lum.

A resident of the Dark World and a female character who forcefully makes her childhood friend Lupa promise to marry her. She also appears as Lupa's love interest.

Ataru's close friend and classmate at Tomobiki High School. A burly male student with tall stature and pimples on his face as a distinctive feature. He often causes pranks and commotions alongside Ataru and is recognized as a person of note in the class. He has a girlfriend (Holy Stomach), known for her gluttonous appetite. The name is derived from editor Kosuke Shirai.

Oni clan's alien girl and the heroine who fell in love with Ataru and lives on Earth. She has a distinctive speech pattern, adding 'datcha' or '~no ke?' to the ends of her sentences.

Lum's fiancé and the top pig tycoon of the planet in the Dark World. Engaged due to a promise from the time of Lum's great-grandfather.

A boy with psychic powers granted by a special glass bead. In order to restore Lum's childhood smile, he tries to separate her from Ataru and live together with her.

Ten's childhood friend and a precocious kindergartener. She espouses mature views on love and is engaged to Ten.

Top executive of Lum's Guard and a possessor of strong personality who wants to protect Lum. An otaku obsessed with the German Wehrmacht, prone to hysteria and eccentric statements, but fundamentally a sensible person who also possesses calmness. Owns a favorite powered suit called 'Heavy Mobius Suit'.

Daughter of Hamachaya, fiancée of Fujinami Ryunosuke after spirit transformation. Appears female but body and mind are male. Glutton with super strength.

Appears in 'Urusei Yatsura' as a teacher at Tomobiki High School and Ataru's homeroom teacher. Nicknamed Onsen Mark.

Queen of Neptune and a yuki-onna, an alien who manipulates cold air and possesses powerful abilities. Usually quiet and elegant, but her personality is cold, intimidating, petty, and insidious. She wields such immense power that her cold air can go berserk, and when angered, she is terrifying enough to discard foes into interdimensional tunnels.

A member of Lum's Guard, he is a slim and tall boy. He has abundant physical strength and initiative, and sometimes serves as the captain of the volleyball club. Among the Guard, he flexibly changes roles while aiming to protect Lum and win her love. He is the only one with a big-eating girlfriend, Miki, besides Lum.

One of the sukeban trio in Urusei Yatsura, a girl with molting ability. She possesses the special skill of freely shedding her skin.

The principal of Tomobiki High School, a broad-minded and tolerant person. He maintains a calm presence in a school rife with endless troubles.

Lum's childhood friend, an alien with split personality who has the ability to steal youth with her lips. Extremely cutesy with a glamorous public face, and a violent hidden personality when angry. Transfers to Tomobiki High School to plot revenge against Lum.

Lum's ex-fiancé and an extremely handsome Oni clansman. A glutton who transforms into a bull oni when excited.

An alien beauty who is a queen harboring feelings for her childhood friend Rio and attempts to use the ultimate love potion.

Shuutarou Mendo's younger sister, a woman who hates boredom and teases her brother. Second-year student at Seiren Girls' Junior High School affiliated with Seiren Women's University.

Transfer student to Tomobiki High School Class 2-4, uses 'ore' as first-person pronoun. Although female, raised as a boy by her father and takes rough, boyish actions. Hates being treated as a boy, seeks femininity but is continually obstructed by her father. An athletically gifted beautiful girl supported by many female students.

The Mendō family gardener and Shingo Mendō's grandfather. Quite senile but a warm-hearted, family-loving person.

Sakuranbo's niece and a shrine maiden who exorcises yokai. Serves as the school nurse at Tomobiki High School, a beautiful woman with powerful spiritual abilities. Speaks in an archaic tone and overcame her frail constitution through yokai exorcism.

A wandering monk with spiritual powers who makes prophecies to Ataru Moroboshi or stirs up trouble. Distinctive for his unique face, he appears suddenly to disrupt the story.