FLCL: Haruhara Haruko

Haruko Haruhara is an energetic, spontaneous, hot pink-haired girl from outer-space, and investigator for the Galactic Space Patrol Brotherhood/Stellar Fraternity. She claims to be 19 years old, but it is impossible to know if this is the truth. In the first episode, she runs over Naota with her Vespa and hits him on the head with her bass guitar. Soon after she's hired by Naota’s father, Kamon, as a house maid.

FLCL: Mamimi Samejima

Mamimi is Tasuku's ex-girlfriend, though she has seemingly begun some sort of relationship with Naota since his brother left Japan. A truant, smoking, pyromaniacal 17-year-old high school student, she spends most of her time loitering under Mabase's largest bridge. She is often seen with a camera, photography being her principal hobby and greatest talent, and near-constantly smokes cigarettes with the words "Never Knows Best" written on them.

FLCL: Eri Ninamori

Eri Ninamori is the daughter of the mayor of Mabase and the president of Naota's sixth grade class. Like Naota she is obsessed with acting grown-up, but she often loses her composure when angry or excited. Ninamori hides her frustration with her father's sex scandal, and rigs an election for the school play so that she gets the lead role while Naota gets cast opposite her, hinting that she has a crush on him.