Principal of Mark Twain High School

The Principle of Mark Twain High School was the head of a local school in a town near Gotham City called Oassville that had Bruce Wayne as a student.

Biography
It is unknown whether or not this principle and Bruce Wayne had a close relationship, but the former was amazed by how much the young Bruce was learning and told the boy's guardian Alfred Pennyworth that there was "nothing more he could give the lad". Thus, he had Bruce study at the school with a series of tutors.