Age: 27 (Born 1999) Gender: Female Body: 195cm / 70kg Occupation: Caddy (Golf-related) Appearance: Voluminous blonde hair with blue eyeshadow, light blue hoop earrings, a light blue sweater with a necklace, and brown pants. Personality: She has a volatile temper and uses her status as the eldest to exert authority and boss her siblings around, but she is equally responsible and takes good care of them.

Age: 26 (Born 2000) Gender: Female Body: 191cm / 68kg Occupation: Fashionista (Clothing-related) Appearance: Long blonde hair with white-rimmed sunglasses perched on top. Wears red earrings, lipstick, a turquoise dress, and a ruby necklace. Personality: She is quite dim-witted, often failing to understand Luan's puns or accidentally walking into walls when turning corners.

Age: 25 (Born 2001) Gender: Female Body: 186cm / 72kg Occupation: Rocker (Music-related) Appearance: Dark purple hair with purple eyeshadow, purple lipstick, and purple rocker attire. Personality: A rock star who loves rock music passionately. She can play various instruments including electric guitar, acoustic guitar, and drums. She is even capable of playing two guitars at once.

Age: 24 (Born 2002) Gender: Female Body: 183cm (including ponytail) / 66kg Occupation: Comedian (Comedy-related) Appearance: Light brown hair with a protruding tuft of bangs, flower-shaped earrings, red lipstick, a magenta sweater, and a yellow patterned skirt. Personality: Always cheerful and optimistic, she loves telling jokes and playing mischievous pranks at every opportunity. She is the eldest among the rowdier Loud siblings and is famous as a mischievous prankster comedian.

Age: 23 (Born 2003) Gender: Female Body: 177cm / 65kg Occupation: Fitness (Sports-related) Appearance: Brown hair tied in a ponytail. Has freckles like Lincoln, wears no earrings, and sports a red and white jersey with a '1' on it and brown shorts. Personality: A tomboyish and easygoing girl. She is hot-headed and the most action-oriented and energetic among the Loud sisters. She is a total tomboy. With excellent athletic nerves, she loves and excels at sports and is even proficient in various martial arts.

Age: 21 (Born 2005) Gender: Male Body: 176cm / 67kg Year: University Senior (Class of '23) Appearance: White hair and freckles. Wears an orange shirt inside, a dark orange jacket outside, and brown pants. Personality: Kind, pure, and considerate, but he is completely oblivious and lacks social intuition.

Age: 18 (Born 2008) Gender: Female Body: 173cm / 51kg Year: University Freshman (Class of '26) Appearance: Black hair, pale skin, and long bangs covering her eyes. Parts of her hair are white on both sides. Wears black earrings, a black dress, black shoes, striped socks, and striped arm warmers. Personality: Unlike her other siblings, she appears gloomy and depressed most of the time and is the quietest. She is the only family member whose face (eyes) is never revealed.

Age: 16 (Born 2010, Lola's twin) Gender: Female Body: 170cm / 55kg Year: High School Sophomore (Class 4) Appearance: Has voluminous blonde hair like Lori. Her hair is tied back, and she wears a dark green t-shirt, a red garment tied like a sash, and blue pants. Personality: Tomboyish and boyish. Her personality is similar to Luan or Lynn. Although she is Lola's twin, unlike her sister who loves dressing up, Lana enjoys getting dirty, especially getting mud on her hands or face.

Age: 16 (Born 2010, Lana's twin) Gender: Female Body: 170cm / 54kg Year: High School Sophomore (Class 4) Appearance: Has voluminous blonde hair like Lori but kept straight in the back. Wears an 'L' shaped headband, earrings, a pink top, and a light pink skirt. Personality: She is always with her identical twin Lana. Their personalities are polar opposites; in contrast to Lana, Lola always wears dresses and acts like a princess. She behaves elegantly in princess attire at all times but is very conceited and rebellious.

Age: 14 (Born 2012) Gender: Female Body: 158cm / 42kg Year: High School Freshman (Skipped grades / Class 5) Appearance: Fitting for a scientist, she always has thick, long brown hair and wears square glasses. She wears a long green top and light red pants. Personality: Usually expressionless and tends to answer with a contemplative or worried look. However, she does occasionally smile or cry.