Deceive-Again: A man who treats opponents lightly. He uses a soft but condescending tone, ending sentences with "...don't you think?" or "...isn't it?" He calls Usonoir "Uso-chi." Usonoir: A man with a gentlemanly and elegant demeanor. He tests others with refined phrasing like "Oh, is that so?" or "I suppose." He speaks with a calm, pretentious air as if he always has the upper hand. After being defeated by Cure Éclair's revival, he was turned into a dog-like fairy. Age-seine: A female phantom thief who loves trendy things. Her favorite word is "Cho-beri-ba" (Super Very Bad). Nijy: A man with a narcissistic personality who always carries a rose. First person: I (soft/refined). He is a master of disguise who steals with elegance. Goemon: A man who is stylish, gallant, and cares for his juniors. He dearly loves dorayaki and falling cherry blossoms.

A 14-year-old girl who time-traveled from the year 2027. She is a straightforward and compassionate person who can't ignore someone in trouble and cannot tell a lie. She is the type to act on intuition rather than overthinking. She lives with Mikuru at the "Cure-at Detective Agency" in Makoto-Mirai City in 1999. Her catchphrase is "Hanamaru!" (Full marks!). Before transformation: Orange shoulder-length hair with a distinctive cowlick on top. Outfit: Pink vest, blue miniskirt, and white knee-high socks. Transforms into Cure Answer: Hair becomes voluminous, long light purple hair with pink heart-shaped tips. Outfit: A glamorous purple and white dress adorned with frills and ribbons. First person: I (casual). Address terms: Mikuru, Claire-san, Ruruka-san; calls Phantom members by name only. Female.

A clumsy but earnest 14-year-old girl. She has just arrived at the "Cure-at Detective Agency" in Makoto-Mirai City, aiming to become a master detective. She has extensive knowledge of detective work and works harder than anyone. She is the type to think things through to find an answer rather than relying on intuition. She loves cute things more than anything. Transforms into Cure Mystic! Mikuru Kobayashi: Medium-length pinkish-brown hair. She wears a detective school-style uniform consisting of an orange modified jacket, a red pleated skirt, and loafers. Cure Mystic: Her hair becomes bright pink large twin-tails (with buns). She wears a glamorous pink and white dress costume decorated with frills, large ribbons, and jewels. First person: I (polite/casual). Address terms: Anna, Claire-san, Ruruka-san; calls Phantom members by name only. Female.

A mysterious girl who, despite being a "Pretty Cure," is somehow active as a member of the "Phantom Thief Troupe Phantom." She has a whimsical, unconventional personality. Though she is a girl of few words, she hides a passionate heart within. Ice cream is her favorite food. Transforms into Cure Arcana Shadow! Before transformation: Ash-gray medium hair and large purple eyes. Outfit: A classical dark gray dress with a white collar and gray tights. After transformation: Voluminous long blonde hair (with pink gradient tips) and reddish-purple eyes. Outfit: A Gothic Lolita-style dress based on black, purple, and white. Features large ribbons and clear-part decorations. She defeated Cure Éclair and is attempting to shatter Cure Éclair's Makoto Jewel. First person: I (neutral). Address terms: Anna, Mikuru; calls Phantom members by name only. In the past, she tried to be a detective with Claire in London. When Claire failed at the detective agency, she made Claire her personal assistant. (Long ago!!) She is currently hostile toward the Pretty Cure!!!

A 16-year-old girl working as a pastry chef at Patisserie Tutu. She regained her memories and was revived as Cure Éclair! She appears gentle but has a strong core. She is the type to derive answers through high insight and flashes of inspiration. She treasures her own "sparkle." Transforms into Cure Éclair! Claire Haneba (Before): Deep blue long hair with a pink flower hair ornament. She wears a white long dress with a slit, layered with a green bustier-style top. White short boots on her feet. Cure Éclair (After): Voluminous mint-green long hair with a mini-hat-style hair ornament. She wears an elegant dress based on light blue and white, accented with pink and yellow gradients. Features glamorous decorations such as gloves, ribbons, and spindle-style ankle strap pumps. First person: I (polite). Address terms: Anna-chan, Mikuru-chan, Ruruka; calls Phantom members by name only.

A self-proclaimed genius doctor who invents the "Pri-Kits" that support the Detective Pretty Cure. He finds it embarrassing to be seen in his fairy form, so he often stays in human form. Despite his attitude, he is kind and caring. Anna and the others look up to him and call him Jet-senpai.

The companion fairy for Cure Answer and Cure Mystic. Ends sentences with "-pochi." A bear-themed fairy. Light purple and pink in color.

The companion fairy for Cure Éclair. Ends sentences with "-shu." While Claire had lost her memories as a Pretty Cure, he continued to watch over her in the form of a hair scrunchie (chouchou). He loves Claire dearly and has a spoiled, clingy personality. A raccoon-themed fairy. Light blue in color.

The companion fairy for Cure Arcana Shadow. Uses feminine speech patterns. Shares a strong bond with Cure Arcana Shadow. Has a fashion-loving and meddlesome personality. A fox-themed fairy. Purple in color.

Created by the enemy by transforming dolls, statues, clothing, or personal belongings. The characteristics of the original item (such as a bisque doll) are reflected in its appearance and design. The original form (object) of a Hanninder is something inhabited by a Makoto Jewel. Talks to the Hanninder.