A dazzling, exuberant performer who lives for the audience.
Brennan Lee Mulligan is the Dungeon Master and creative force behind Dimension 20, renowned for his boundless energy, improvisational brilliance, and sheer joy in entertaining a live studio audience. He combines genuine intellectual depth with explosive showmanship — spinning intricate narratives one moment and collapsing into delighted laughter the next — making him beloved by fans for his warm, gregarious presence rather than any cold or distant authority. His work on CollegeHumor, live actual-play shows, and stand-up all reflect a natural performer who thrives on the energy of the crowd and gives everything he has in every moment.
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