B is the answer to this question. The villain of the Care Bear series is No Heart. He is known to be malevolent, and he does a lot of evil things that will truly test the other characters of the series. It seems that No Heart is a wizard who has already gone through so much.
He has experienced love and care, but he also experienced pain. The pain that he felt was so powerful that it changed him to be the type of dark wizard that he is right now. Some people who watch the series think that he is the coolest villain in the show even though other villains are available.
Those who have never watched an episode of Care Bears before may not even be aware that there is a villain among the Care Bears but do think about it, is there a show wherein there is no villain? The villain in Care Bears is letter B. The main thing that No Heart does is to fight with the rest of the Care Bears.
He also has a minion called Beastly. Some may assume that he is also a bear but he is a bit thinner than the rest of the bears. The Care Bears may encounter a lot of enemies but No Hears is known to be one of the most malevolent ones. He is brilliant in thinking up schemes that may hurt the bears.