Оскар Везалій

Oz's uncle. He is easy-going and very caring. Oscar was the one who found Gilbert and brought him to the Vessalius household. Both Oz and Raven treat him as a father figure. He gets along well with Break.

When he received a letter from Ada (in which she stated that she had found someone who she likes), he took Oz, Gilbert and Alice to Latowidge. They dressed as students, and snuck into the school.