Brian Moriarty is one of the four chief Implementors, and extremely well-loved by the populous.

Sometime during the twelveth century, some historians presume that this Implementor decended to Zork where he assumed the guise of a professor. Either way, "Professor" Brian Moriarty was found wanted by the Festeron police in 1157 GUE for having impersonated a storyteller.

SOURCE(S): Wishbringer, Beyond Zork, Zork:The Undiscovered Underground