Wildberry Princess makes her appearance in the episode "Prisoners of Love" where she is kidnapped by Ice King. She has a tiny, high-pitched voice, and is a wildberry. She is also forced by the king to play an electric keyboard. She is one of two princesses that help chip off the ice on Jake after his body was frozen by Ice King. In "The Eyes," she gets kidnapped by the Ice King once again but Finn and Jake saved her. She also appears in "Loyalty to the King" as one of the Nice King's many admirers. In "Jake vs. Me-Mow," Wildberry Princess was going to be assassinated by Me-Mow, a tiny assassin from the Guild of Assassins. She is also in "Bad Little Boy" and saying: "I think the story is a new form of torture" to the Ice King about his fan fiction when she was trapped inside of a cage; Marceline later freed her, but stayed inside Ice King's castle to listen to Marceline's story.
Wildberry Princess can detach her berries from her body. If she does this she looks like a cherry but she says, "it's a medical condition." It is unknown if she can control this ability, as in "Jake vs. Me-Mow," she stated that she needed a hospital after her berries fell off.
Wildberry Princess is skilled at making meat pies out of the many animal carcasses she keeps in her palace. It appears that she could eat only meat to not hurt any fellow plant, making her a carnivore.