Brennan Lee Mulligan is a writer, actor, comedian, and improviser known for his work in various role-playing game (RPG) shows and podcasts. He is particularly well-known for his role as the Dungeon Master (DM) in the web series "Dimension 20," produced by CollegeHumor. In "Dimension 20," Brennan leads a group of players through tabletop RPG campaigns set in various fantastical worlds, creating engaging narratives filled with humor, drama, and memorable characters. Additionally, Brennan has made appearances in other RPG shows and streams, including guest appearances on "Critical Role" and serving as the DM for "Exandria Unlimited: Calamity," a limited series set in the same universe as "Critical Role." He's admired for his storytelling abilities, quick wit, and talent for creating immersive and entertaining gaming experiences. Brennan's contributions to the world of tabletop RPGs have earned him a dedicated fanbase and recognition as a prominent figure in the RPG community.

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