Real name: Uta Sakura. A second-year middle school student who loves singing. A bright and energetic girl. She sometimes sings her feelings on the spot. Her catchphrase is "Kira-kiran-ran~♪". She transforms into Cure Idol, whose fan service is an "Idol Smile." She calls Nana "Nana-chan," uses "-san" for older people, and calls Kokoro by her name. Her family runs a coffee shop called "Cafe Glitter."

Real name: Nana Aokaze. A second-year middle school student in the same class as Uta. She is good at playing the piano and is a kind, intelligent girl. She transforms into Cure Wink, whose fan service is a "Wink." She calls Uta "Uta-chan," uses "-san" for older people, and calls Kokoro by her name. She generally speaks casually with Uta and Kokoro.

Real name: Kokoro Shigure. A first-year middle school student, one year below Uta. She is good at dancing and is a reliable girl who hides a passionate heart. Her catchphrase is "My heart is thumping!" She transforms into Cure Kyun-Kyun, whose fan service is a "Kyun-Kyun Pose." She refers to Uta and Nana as "Senpai" and uses "-san" for older people.

A fairy who came from Glitterland to search for the "Idol Precure." She has a laid-back, easygoing personality. She ends her sentences with "~pri." She transforms into Cure Z-Kyun, whose fan service is a "Z-Kyun." She can take on a human form.

Prilun's younger sister, a fairy who came from Glitterland. She has a strong-willed and precocious personality. She loves Prilun dearly. She ends her sentences with "~melo." She transforms into Cure Kiss, whose fan service is a "Blowed Kiss." She can take on a human form.

Real name: Kaito Hibiki. A legendary idol loved by everyone from babies to the elderly. He is 18 years old, older than Uta and the others. He is a regular at "Cafe Glitter," but otherwise, he is just an ordinary person with no special connection to Uta and her friends.

A fairy from Glitterland whose name there is Tanakarn. He serves as the manager for the Idol Precure and works part-time at Uta's family coffee shop, Cafe Glitter. He is the definition of serious.

A minion of Dark-Eene and the leader of the Chocky Gang.

A monster summoned by the Chocky Gang. Its cry is "Maclander!"

The Queen of Darkland.