Siobhan Thompson

Acting

Siobhan Thompson

Born July 29, 198435 credits

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

Dimension 20 Live: Viva Más Vegas

Dimension 20 Live: Viva Más Vegas

Movie

2026

Dimension 20 Live: Quangle Quest

Dimension 20 Live: Quangle Quest

Movie

2025

Dimension 20 Live: Battle at the Bowl

Dimension 20 Live: Battle at the Bowl

Movie

2025

Dimension 20 Live: Gauntlet at the Garden

Dimension 20 Live: Gauntlet at the Garden

Movie

2025

The Roll of a Lifetime: How Dimension 20 Sold Out Madison Square Garden

The Roll of a Lifetime: How Dimension 20 Sold Out Madison Square Garden

Movie

2025

The Scripted Muppet Caper

The Scripted Muppet Caper

Movie

2025

Filmography

Dimension 20 Live: Viva Más Vegas
2026Dimension 20 Live: Viva Más Vegasas RivaMovie
Dimension 20 Live: Quangle Quest
2025Dimension 20 Live: Quangle Questas Adaine Abernant / Ruby Rocks / Rosamund du Prix / Riva / Iga LisowskiMovie
Dimension 20 Live: Battle at the Bowl
2025Dimension 20 Live: Battle at the Bowlas Adaine AbernantMovie
Dimension 20 Live: Gauntlet at the Garden
2025Dimension 20 Live: Gauntlet at the Gardenas Misty MooreMovie
The Roll of a Lifetime: How Dimension 20 Sold Out Madison Square Garden
2025The Roll of a Lifetime: How Dimension 20 Sold Out Madison Square Gardenas Self - Cast MemberMovie
The Scripted Muppet Caper
2025The Scripted Muppet Caperas Lady HolidayMovie
Gastronauts
2024Gastronautsas Self - JudgeTV
Dimension 20: Time Quangle
2024Dimension 20: Time Quangleas Rowan BerryTV
Dimension 20 Live
2024Dimension 20 LiveTV
Thousandaires
2024Thousandairesas Self - HostTV
Smartypants
2024Smartypantsas Self - Society MemberTV
The Disruptors
2024The Disruptorsas MelissaMovie
The Legendary Rick Perry and the Art of Dimension 20
2023The Legendary Rick Perry and the Art of Dimension 20as Self (archive footage)Movie
Krapopolis
2023KrapopolisWriterTV
Dirty Laundry
2022Dirty Laundryas Self - GuestTV
Dimension 20 Animated
2021Dimension 20 Animatedas Ruby Rocks (voice)TV
Dimension 20's Adventuring Party
2020Dimension 20's Adventuring Partyas SelfTV
Game Changer
2019Game Changeras Self - ContestantTV
Fantasy High: Extra Credit
2019Fantasy High: Extra Creditas SelfTV
Troopers: Rise of the Budget
2019Troopers: Rise of the Budgetas TR-45HY "Trashy" (voice)TV
The Rank Room
2019The Rank Roomas SelfTV
Total Forgiveness
2019Total Forgivenessas SelfTV
WTF 101
2019WTF 101as Mary Toft (voice)TV
Adventuring Academy
2018Adventuring Academyas SelfTV
Um, Actually...
2018Um, Actually...as Self - ContestantTV
Dimension 20
2018Dimension 20as Adaine AbernantTV
Breaking News: No Laugh Newsroom
2018Breaking News: No Laugh Newsroomas O.K. SimpsonTV
CollegeHumor Does the Purge
2016CollegeHumor Does the Purgeas SiobhanTV
Bad Internet
2016Bad Internetas The HermioneTV
CollegeHumor Goes to Hell
2015CollegeHumor Goes to Hellas SiobhanTV
Um, Actually: The Web Series
2015Um, Actually: The Web Seriesas Self - ContestantTV
Broad City
2014Broad Cityas LeighTV
Rick and Morty
2013Rick and MortyWriterTV
Arrested Development
2003Arrested Developmentas British ReporterTV
T
—The Greatest Treasure in the WorldWriterMovie