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Acting
Brennan Lee Mulligan is an actor and writer known for Dimension 20, College Humor, and Strong Female Protagonist.

Muppet Treasure Scriptland
as Long John Silver

Wealwell's Guide to Reposed Standing
as Wealwell Gotch (voice)
Jeopardy! YouTube Edition
as Self

Toonout
as Wealwell Gotch (voice)

Dimension 20 Live: Viva Más Vegas
as Game Master

Tale Gate
as Self

Dimension 20 Live: Quangle Quest
as Game Master

Dimension 20 Live: Battle at the Bowl
as Game Master

D(e)ad
as Owen from Science Care

Crowd Control
as Self

Critical Role Live: Oaths & Ash
as Self

Dimension 20 Live: Gauntlet at the Garden
as Game Master

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

Parlor Room
as Helen Hacketty

Wildemount Wildlings
as Padmund Pondhop

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

Game Changer Animated
as Self (voice)

Gastronauts
as Self - Judge

Dimension 20: Time Quangle
as Game Master

Dimension 20 Live

Chris Grace: As Scarlett Johansson
as Brennan Lee Mulligan

Bigger! With Brennan and Izzy
as Self

Monét's Slumber Party
as Self - Party Guest

Thousandaires
as Self - Guest (voice)

Fireside Chat
as Self

Critical Role Cooldown
as Self

Critical Role Abridged
as Self

ted
as Chris

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

Very Important People
as Augbert

The Ultimate Improv Show
as Self

Candela Obscura
as Sean Finnerty

Make Some Noise
as Self - Player

Exandria Unlimited: Calamity
as Game Master

Dirty Laundry
as Self - Guest

4-Sided Dive
as Self

The Candlenights 2021 Special
as Self

Dimension 20: Misfits and Magic Holiday Special
as Evan Kelmp

Battle for Beyond
as Nikhil

Dimension 20 Animated
as Lucretia "Lucy" Brockhollow (voice)

Exandria Unlimited
as Game Master

Dimension 20's Adventuring Party
as Self

Puppet History
as Self

Ultramechatron Team Go!
as Galatax

Game Changer
as Self - Contestant

Fantasy High: Extra Credit
as Self - Host

Kingpin Katie
as Brennan Lee Mulligan

Troopers: Rise of the Budget
as Gooby (voice)

Downbeat
as Tourist

The Rank Room
as Self

Total Forgiveness
as Self

Restroom

WTF 101
as Gregor MacGregor (voice)

Adventuring Academy
as Self - Host

Ultramechatron Team Go!: The Web Series
as Crab

Liverspots and Astronots
as Lancery

Um, Actually...
as Self - Contestant

Cartoon Hell
as Trundle (voice)

Dimension 20
as Bishop Raphaniel

The Rank Room: The Web Series
as Self