A second-year middle school student who loves constellations and space! She is highly imaginative and full of curiosity. She holds a strong belief in "liking what she likes," regardless of what others say. She is the type to pursue her interests to the end and act on intuition. Her catchphrase is "Twinkle-tastic!~☆" She transforms into the PreCure of Stars, Cure Star! Transformation Phrase: "The twinkling star that shines in the universe! Cure Star!" 1st person: I

An alien from the planet Saman. She is 13 in Earth years, but considered an adult on Saman. While traveling in a rocket with Fuwa and Prunce to find the legendary PreCure warriors, she warped to Earth through Fuwa's power. She is responsible and serious, but can be a bit clumsy. Her charm point is the sensors on her head. She transforms into the PreCure of the Milky Way, Cure Milky! Her catchphrase is "Oyo~" and she ends her sentences with "-run." Transformation Phrase: "The Milky Way that spreads across the heavens! Cure Milky!" 1st person: Lala

A third-year middle school student as bright as the sun with a wonderful smile. She is the most popular girl in school and is called the "Sun of Mihoshi Middle School." Her family runs a flower shop called "Sonrisa" in the shopping district. As the eldest of six siblings, she often looks after her younger brothers and sisters or helps at the shop in place of her busy parents. She transforms into the PreCure of the Sun, Cure Soleil! Catchphrases: "Ciao!" and "That's good!" Transformation Phrase: "Lighting up the universe! The scorching sparkle! Cure Soleil!" 1st person: I

A graceful and hardworking third-year middle school student. She is a young lady from a prestigious family; her father is a high-ranking government official and her mother is a world-famous pianist. She is a talented girl who has won national championships in piano and kyudo (archery), practices flower arrangement and tea ceremony, and consistently maintains top grades. She is the admired student council president known as the "Moon of Mihoshi Middle School." She transforms into the PreCure of the Moon, Cure Selene! Catchphrase: "Good day." Transformation Phrase: "Shining in the night sky! The mysterious moonlight! Cure Selene!" 1st person: I

An alien from the planet Rainbow. A member of a cat-like race with the ability to shapeshift into various forms, such as the space phantom thief Blue Cat or the space idol Mao. To find a way to save her petrified people, she infiltrated the Notraiders by transforming into Bakenyan. She transforms into the PreCure of the Universe, Cure Cosmo! Catchphrase: Ends sentences with "-nyan." Transformation Phrase: "The rainbow-colored spectrum glowing in the galaxy! Cure Cosmo!" 1st person: I

A fairy created by the Star Princesses as their final hope to entrust the future of the universe. Catchphrase: Ends sentences with "-fuwa."

A jiggly alien. He once served the Star Princesses of the twelve constellations at the Star Palace. He ends his sentences with "-prunce."