Regina

 Regina is the mysterious character that appears at the end of the 12th episode of Doki Doki! Pretty Cure. She's the second in command of the Selfish Trio. She is also Selfish King's daughter as seen in the end of the 13th episode.

Apperance
Regina has long yellow hair that reaches down to her waist, decorated with a red bow on top. She wears a dark grey dress decorated with red parts and a black jacket.

First Appearance
Not much is known about Regina's past before she first appears at the end of the episode and comments that the cures will make fun playmates. Her next appearance is at the end of the next episode where she says that she's the daughter of the Selfish King and is here to help the Selfish Trio out.

Meeting the Cures
She gets to meet the Cures when she summons her first Jikochuu. After seeing the Cures defeating the Jikochuu, she then introduces herself, as she says she is Selfish King's daughter making Cure Sword sad. Regina then runs off but still seems somewhat interested in the cures especially Mana.

Personality
Regina is selfish, vain and spoiled, treating everyone else as her servants and, as she puts it, hating anything else more beautiful than her. If she doesn't get the selfish trio to do what she wants, she acts like a child talking to her older siblings, threatening them with telling on them to her father. She is also playful and tries to haul Mana around and make her play instead of going to classes or being responsible. At the end of episode 16, she recalls what Mana said about true friends, but she doesn't know what a true friend is.Regina is somewhat a demon and a model of perfection,always acting all childish.During episode 13,she appeared when the cures were at a garden and said the word 'princess'.She told the girls that she is as pretty as a princess,and they wondered if she is Princess Mary Ange.Rikka asked Makoto if she is the princess and Makoto said the princess loves roses.Makoto asked Regina if she loves roses and she said she hates roses,and anything prettier than her.And with a click of her fingers,the roses wilted and died and dropped to the ground.

Powers
Her powers are shown in episode 15, as she could turn people into Jikochuu by finding people's hidden selfishness rather than using it when the thoughts come to the surface.

She first produces a hole and then she puts her finger and then a dark energy is produced as it colors the person's heart and then she summons a Jikochuu.

Trivia

 * She doesn't have light blue hair like the other members, which is probably because she is not related to Ira and the others. She also doesn't have batwings behind her ears.
 * She looks similar to Joe because of her yellow hair.
 * She is similar to Northa from Fresh Pretty Cure! because both were the second female villains introduced and were different than other members of the group.
 * Regina shares her voice actress with Natsuki Yu.
 * She could be the only one who can forcibly make a person's heart selfish.
 * She bears a striking resemblance to Ichigo Hoshimiya from Aikatsu! because of her yellow hair and red ribbon.