Dungeon Master

The Dungeon Master (DM), or Game Master (GM), is the planner, narrator, and referee of a tabletop role-playing game.

Dungeons Masters of Critical Role
Matthew Mercer is the DM of the first Campaign Two: The Mighty Nein Critical Role campaigns episodes and some of the special episodes as well. When Matt is unavailable, needs more time to plan for the next episode (or just wants to be a player for once), one of the other players will sometimes take over as the DM for a one-shot game. Aabria Iyengar was the Dungeon Master of Exandria Unlimited, marking the first time someone besides Mercer is the Dungeon Master of a full Critical Role campaign, albeit a miniseries.

List of Dungeon Masters

 * Matthew Mercer
 * Campaign One: Vox Machina
 * Campaign Two: The Mighty Nein
 * Liam O'Brien
 * Sam Riegel
 * Taliesin Jaffe
 * Travis Willingham
 * (in-character as Grog Strongjaw)
 * Marisha Ray
 * Laura Bailey
 * Mark Hulmes
 * Ashley Johnson
 * Upcoming one-shot
 * Brian Wayne Foster
 * UnDeadwood
 * Aabria Iyengar
 * Exandria Unlimited
 * Travis Willingham
 * (in-character as Grog Strongjaw)
 * Marisha Ray
 * Laura Bailey
 * Mark Hulmes
 * Ashley Johnson
 * Upcoming one-shot
 * Brian Wayne Foster
 * UnDeadwood
 * Aabria Iyengar
 * Exandria Unlimited
 * Upcoming one-shot
 * Brian Wayne Foster
 * UnDeadwood
 * Aabria Iyengar
 * Exandria Unlimited