Corvo is aided in his quest by the Loyalists—a resistance group fighting to reclaim Dunwall, and the Outsider—a powerful being who imbues Corvo with magical abilities.
Corvo er hjulpet i hans mission af ​​loyalisterne - en modstandsgruppe der kæmper for at genvinde Dunwall og af ”The Outsider”, et stærkt væsen, som giver Corvo med magiske evner.