Sweetheart (voiced by Maggie Blue O'Hara)  as her name describes, is a sweetheart. She is the most kind-hearted of the group and she hates to let anyone down and is forced to the middle of fights between her friends. Sweetheart can see anyone's good nature, and knows that Teddy is not as bad as he seems. Sweetheart has three young siblings, two of whom are named Sugar and Peaches. She wants to be a doctor when she grows up. She is white with pink hair and her hip mark is a big pink heart, with three little orange hearts surrounding it.