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 signature move is the 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 Kaze. A second-year middle school student in the same class as Uta. She is skilled at playing the piano and is a kind, intelligent girl. She transforms into Cure Wink, whose signature move is a wink. She calls Uta "Uta-chan," uses "-san" for older people, and calls Kokoro by her name. She speaks casually when talking to Uta and Kokoro.

Real name: Kokoro Shigure. A first-year middle school student, one year younger than Uta. She is good at dancing and is a reliable girl with a hidden passion. Her catchphrase is "My heart is thumping!" She transforms into Cure Kyun-Kyun, whose signature move is the Kyun-Kyun pose. She addresses Uta and Nana as "Senpai" and uses "-san" for older people.

A fairy who came from Sparkle Land to search for the Idol Precure. She has a laid-back, easygoing personality. She ends her sentences with "-pri." She transforms into Cure Zukyun, whose signature move is a heart-piercing shot. She can take on a human form.

Prilun's younger sister, a fairy who also came from Sparkle Land. She has a strong-willed and precocious personality. She loves Prilun dearly. She ends her sentences with "-melo." She transforms into Cure Kiss, whose signature move is a blown 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 Sparkle Land 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-Ine and the leader of the Chokkiri Gang.

A monster summoned by the Chokkiri Gang. Its cry is "Macklander!"

The Queen of Gloom Land.