Here are all the character profiles from the Star Twinkle website translated by a human (me). I’m bolding the things animenewsnetwork left out in their article, or when my translation differs significantly from theirs.
Cure Star/Hikaru Hoshina (星菜 ひかる)
C.V. Eimi Narusei
Loves the constellations (can also be read as Zodiac) and the cosmos! A second-year middle school student rich in imagination and brimming with curiosity. Has a firm conviction of “I like what I like!” no matter what anyone may say. Thoroughly investigates anything that interests her, the type who acts on intuition. Her favorite phrase is “Glitterrific☆”
Self-Introduction: “Glinting, glittering star in the cosmos! Cure Star!”
Favorite phrase: Glitterrific☆ (Kirayabaaa☆)
Origin: Starview Middle (Earth)
Birthday: March 12
Cure Milky/Lala Hagoromo ( 羽衣 ララ )
C. V. Kohomi Kohara
An alien from the planet Samaan. A first-year middle school student of 13 Earth years, she is treated as an adult on Samaan. In the middle of a journey on a rocket searching for the legendary warriors PreCure with Fuwa and Prunce, Fuwa’s power warps onto Earth. Though serious and possessing a strong sense of responsibility, she can be a bit absent-minded at times. Her charm point is the sensor on her head. Transforms into the PreCure of the Milky Way, Cure Milky!
Self-introduction: The Milky Way across the sky! Cure Milky!
Favorite phrases: “~run”, “oyo~” (I can’t translate these)
Origin: Planet Samaan (Skyworld)
Birthday: July 7 (Tanabata)
Cure Soleil/Erena possibly Elena) Amanogawa (edit: Amamiya) (天宮 えれな )
C. V. Kiyono Yasuno
Bright-spirited like the sun, a third-year middle school student with a totally amazing smile. The most popular person in school, she is known as “the sun of Starview Middle.” Older sister of 6 siblings, she’s often keeping her brothers and sisters out of trouble in the place of her busy parents, as well as helping with their store. Transforms into the PreCure of the Sun, Cure Soleil!
Self-introduction: Lighting up the cosmos! A blazing gleam! Cure Soleil!
Favorite phrases: “Tchau!”, “I like!” (「チャオ!」「いいねぇ!」)
Origin: Starview Middle (Earth)
Birthday: September 8
A ladylike third-year middle school student who tries hard to be kind. She is the daughter of generations of prestige, with her father a government administrator and her mother a world-famous pianist. Her own ability at the piano and at Japanese archery is at the national championship level, and she is the school’s leading lady in both flower arrangement and the tea ceremony. As the student council president admired by all, she is known as the “Moon” of Starview Middle. Transforms into the PreCure of the Moon, Cure Selene!
Self-introduction: Lighting up the night sky! The mysterious moonlight! Cure Selene!
Favorite phrase: Good day (gokigenyou).
Origin: Starview Middle (Earth)
Birthday: November 23
Entrusted with the future of the cosmos, a fairy created as the last hope of the Star Princesses. Like a baby, a very young, pure existence, but has the potential to unleash the sealed powers of the Star Princesses, mysterious powers to open warp holes. Also, when releasing the sealed powers of the Star Princesses, Fuwa has 12 different transformations.
Prunce (Note: This is the official spelling; see here)
C. V. Hiroyuki Yoshino
A jiggly (purupuru) alien. Used to work at the palace of the 12 Zodiac Star Princesses. While protecting Fuwa, left by the Star Princesses, searching for the legendary warriors PreCure is the key to reviving the Star Princesses. Prunce’s special skill is free transformation.