Charlotte Aulin is a gifted young witch and a friend of Jonathan Morris since their childhood. Despite being intelligent, Charlotte is a little too confident in her book smarts. She talks a lot and sticks her nose into others' business. Charlotte takes a logical approach to everything so she comes off as unemotional. She has great magic power, and is seen as the potential final weapon in the battle against Dracula.
Charlotte is affiliated with the Church and can cast complex magic spells. She can even transform herself into animals.
In 1944, Charlotte aided Jonathan in an effort to foil the plot to destroy humanity by the vampire artist Brauner and his twin vampire daughters, Stella and Loretta.
She is reprised by Stephanie Sheh in English dub and Yumi Kakazu in Japanese dub.