
Brennan Lee Mulligan
- Known for
- Acting
- Born
- January 4, 1988
- Birthplace
- New York, USA
Brennan Lee Mulligan is an actor and writer known for Dimension 20, College Humor, and Strong Female Protagonist.
Filmography

American Woodcock 2026
as Birding Man (voice)

Dropout Presents an Improvised Reunion for a Movie that Doesn’t Exist 2026
as Self

Crossed Animals 2026
Thanks

Muppet Treasure Scriptland 2026
as Long John Silver

Wealwell's Guide to Reposed Standing 2026
as Wealwell Gotch (voice), Additional Writing

Dimension 20 Live: Viva Más Vegas 2026
as Game Master, Creator, Executive Producer, Writer

Dimension 20 Live: Quangle Quest 2025
as Game Master, Creator, Executive Producer, Writer

Dimension 20 Live: Battle at the Bowl 2025
as Game Master, Creator, Executive Producer, Writer

D(e)ad 2025
as Owen from Science Care, Executive Producer

Critical Role Live: Oaths & Ash 2025
as Self

Dimension 20 Live: Gauntlet at the Garden 2025
as Game Master, Executive Producer, Writer, Creator

The Roll of a Lifetime: How Dimension 20 Sold Out Madison Square Garden 2025
as Self - Creator of Dimension 20 / Game Master / Dungeon Master, Executive Producer

Katie and Erika Throw The Perfect (Valentine’s Day) Party 2025
as Self

Chris Grace: As Scarlett Johansson 2024
as Brennan Lee Mulligan

Bigger! With Brennan and Izzy 2024
as Self, Writer

The Legendary Rick Perry and the Art of Dimension 20 2023
as Self

Exandria Unlimited: Calamity 2022
as Game Master, Director, Writer

The Candlenights 2021 Special 2021
as Self

Dimension 20: Misfits and Magic Holiday Special 2021
as Evan Kelmp, Executive Producer, Creator

Restroom 2019
Actor

Crown Prince 2017
as Bartender

Fallen For You 2017
as Todd, Writer, Creator

Nancy 2016
Actor

Bev 2016
as Bev

Zenith 2010
Transportation Captain
Credits from TMDB.