Black Rollpanna is an evil version of Rollpanna who was brainwashed by Baikinman.
Melonpanna's older sister who has two hearts: A red one of goodness, and thanks to Baikinman, a blue one of evil. She was once a lone wolf who faces Anpanman and Melonpanna. But in some episodes when she sees Baikinman, her heart color changes to blue in which she turns evil. Under Baikinman's command, she seeks to destroy Anpanman in order to achieve his goal. However, Melonpanna comforts her to do good deeds.