Mordred

Mordred is the current Cavern Master of the game world. It is due to his actions that the world of Dalgar has been populated with PC's (player characters) who seem out of step with the majority of the populace.

Mordred typically transports players to Dalgar after they have offended him. Offending Mordred seems to be a rather simple task as he has no real sense of humor about himself.

Mordred wears a cape non-ironically.

In an effort to save himself from certain death while falling from a casino hotel window, he cast his six magical dice before hitting the ground, resulting in him manifesting as six separate avatars in the fantasy world. These avatars are separate entities, but Mordred is limited to occupying only one at a time. As of Critical Failures 8, he has been revealed as: a Dwarven spellcaster (psionicist), Halfling Wizard, Human Bard (Jordan Knight), and Human Wizard. As of the latest edition of the series, four Mordreds remain alive and seeking the magical dice.

Main Story Plot Involvement
He is the main villain in the story, although the failures encounter enemies that are powerful.