Emissary

Emissaries are NPCs located around the Dwarven Mines who allow players to turn in their Commissions. To unlock Emissaries, players must complete Commission Milestones.

Note that players have to claim said milestones from either the king or any active Emissaries, otherwise they will remain invisible.

Trivia

 * Emissary Sisko is most likely a reference to Benjamin Sisko, the protagonist of Star Trek: Deep Space Nine, who also held the title of Emissary to the Prophets.