The patriarch of the van der Gros family. He is hybridized and, as a result, is extremely tall. He is the paradigm of authority and exudes command whereever he goes, which likely helped him when it came to founding Center Path Institute, and his other affairs. I refuse to speak on it; Constantine is a very observant and cautious individual. Someone like him has to be.

Most of his time is either spent at his academy, or somewhere else beyond Burncastle under the pretense of other forms of work, typically associated with his career as a psychiatrist.

I cannot say anything more.