Cure Beauty (Reika Aoki) from "Smile Precure!" is an elegant and gifted girl who serves as the student council vice president (later president) at Nanairogaoka Middle School. Joining as the fifth member of a team that tends to rush headlong into things, she is the Precure who symbolizes "Intelligence and Nobility," supporting her friends with her innate composure and deep compassion. In her civilian form, she is a Japanese-style beauty with striking, straight navy-blue hair. After transforming, her hair changes into voluminous, pale blue long locks. Clad in a noble transformation dress of white and blue, she exudes a dignity like ice crystals. Her personality is extremely serious and responsible; she is a refined young lady who speaks to everyone in polite, formal language. However, she feels a quiet fury toward cowardly acts or malice that tramples on precious things, displaying an intimidating presence and a terrifying intensity that proves she is the scariest person to anger. In battle, she wields the power of water and ice, acting as the intellectual of the group who accurately analyzes the situation without being swayed by emotion. As a member of the archery club, she demonstrates high skill and grace in close combat, creating ice shields and swords. Her signature finishing move, "Precure Beauty Blizzard," involves tracing a snowflake crest and unleashing a powerful blizzard. Her dignified strength as she walks the "path" she believes in—including her duel with the formidable Joker—is remembered by fans as one of the most beautiful and overwhelmingly powerful characters in the series.

Joker from "Smile Precure!" is the executive leader of the evil organization "Bad End Kingdom" and the closest aide to Emperor Pierrot, plotting his resurrection. A cold-blooded tactician who pulls the strings of the three executives like Wolfrun from the shadows, he is a villain who symbolizes "pure malice," having driven the Precure to the brink of despair many times. As his name suggests, he appears as a jester reminiscent of a playing card joker or a clown. He is characterized by long purple hair, eerie makeup, and pointed shoes, maintaining a flippant and mocking attitude at all times. However, his expressions and laughter when revealing his true nature are incredibly unsettling, filled with a madness that left many young viewers traumatized. He secretly looks down on his fellow executives, viewing them as nothing more than disposable pawns, even giving them life-draining items while hiding the risks. In combat, he boasts extremely high fighting abilities that can overwhelm all five Precure at once, using playful, magic-trick-like performances. He toys with them using versatile tactics, such as using countless playing cards as shields or absorbing Precure finishing moves into cards to reflect them back. His physical combat and rapier swordsmanship are top-tier, and he excels not only in power but in psychological warfare (Despair Speeches) to break the opponent's spirit with silver-tongued words. He has a particularly deep rivalry with the intellectual Cure Beauty; the clash of strategy and conviction seen in their final deathmatch is regarded by fans as one of the greatest battles in Precure history.