Siobhan Thompson
Acting
Siobhan Thompson (born 29 July 1984) is a British-American sketch comedian and comedy writer. She is known for her work on the CollegeHumor Originals web series and has appeared in other programs such as Adam Ruins Everything and Broad City. She was also a staff writer for Adult Swim's Rick and Morty.
Known for
2026Dimension 20 Live: Viva Más Vegas
Riva
2025Dimension 20 Live: Gauntlet at the Garden
Misty Moore
2025The Roll of a Lifetime: How Dimension 20 Sold Out Madison Square Garden
Self - Cast Member
2025The Scripted Muppet Caper
Lady Holiday
2025Dimension 20 Live: Battle at the Bowl
Adaine Abernant
2025Dimension 20 Live: Quangle Quest
Adaine Abernant / Ruby Rocks / Rosamund du Prix / Riva / Iga Lisowski
2024The Disruptors
Melissa
2023The Legendary Rick Perry and the Art of Dimension 20
Self (archive footage)