Dungeon Master

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

Dungeon Masters of Critical Role
Matthew Mercer is the DM of the first, second, and third Critical Role campaigns and some of the special episodes as well. Other people sometimes take over as the DM for a one-shot game or miniseries. Aabria Iyengar was the Dungeon Master of Exandria Unlimited, marking the first time someone besides Mercer was 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
 * Campaign Three
 * Liam O'Brien
 * Sam Riegel
 * Taliesin Jaffe
 * Travis Willingham
 * (in-character as Grog Strongjaw)
 * Marisha Ray
 * Laura Bailey
 * Mark Hulmes
 * Ashley Johnson
 * Brian Wayne Foster
 * UnDeadwood
 * Aabria Iyengar
 * Exandria Unlimited
 * Ashly Burch
 * Travis Willingham
 * (in-character as Grog Strongjaw)
 * Marisha Ray
 * Laura Bailey
 * Mark Hulmes
 * Ashley Johnson
 * Brian Wayne Foster
 * UnDeadwood
 * Aabria Iyengar
 * Exandria Unlimited
 * Ashly Burch
 * Mark Hulmes
 * Ashley Johnson
 * Brian Wayne Foster
 * UnDeadwood
 * Aabria Iyengar
 * Exandria Unlimited
 * Ashly Burch
 * Exandria Unlimited
 * Ashly Burch