Siobhan Thompson
Acting
60
Acting Credits
Biography
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
Filmography
Dimension 20 Live: Viva Más Vegas
2026
as Riva
Wealwell's Guide to Reposed Standing
2026
as Vanellope Chapman (voice)
Muppet Treasure Scriptland
2026
as Jim Hawkins
Toonout
2026
as Vanellope Chapman (voice)
Dimension 20 Live: Gauntlet at the Garden
2025
as Misty Moore
The Roll of a Lifetime: How Dimension 20 Sold Out Madison Square Garden
2025
as Self - Cast Member
The Scripted Muppet Caper
2025
as Lady Holiday
Dimension 20 Live: Battle at the Bowl
2025
as Adaine Abernant
Dimension 20 Live: Quangle Quest
2025
as Adaine Abernant / Ruby Rocks / Rosamund du Prix / Riva / Iga Lisowski
Katie & Erika Throw the Perfect Father’s Day Party
2025
as Self
Ask Hank Anything
2025
The Disruptors
2024
as Melissa
Thousandaires
2024
as Self - Host
Dimension 20: Time Quangle
2024
as Rowan Berry
Dimension 20: Time Quangle
2024
as Adaine Abernant
Dimension 20: Time Quangle
2024
as Princess Rosamund du Prix
Dimension 20: Time Quangle
2024
as Ruby Rocks
Smartypants
2024
as Self - Society Member
Smartypants
2024
as Self - Presenter
Gastronauts
2024
as Self - Judge
Dimension 20 Live
2024
The Legendary Rick Perry and the Art of Dimension 20
2023
as Self (archive footage)
Dirty Laundry
2022
as Self - Guest
Dimension 20 Animated
2021
as Riva (voice)
Dimension 20 Animated
2021
as Ruby Rocks (voice)
Dimension 20 Animated
2021
as Princess Rosamund du Prix (voice)
Dimension 20 Animated
2021
as Adaine Abernant (voice)
Artists On Artists On Artists On Artists
2021
as Gwendolyn Forsyth-Puck
Dimension 20's Adventuring Party
2020
as Self
Game Changer
2019
as Self - Contestant
Total Forgiveness
2019
as Self
Troopers: Rise of the Budget
2019
as TR-45HY "Trashy" (voice)
The Rank Room
2019
as Self
WTF 101
2019
as Amsterdam Woman (voice)
WTF 101
2019
as Mary Toft (voice)
Game Changer
2019
as Self (archive footage)
Fantasy High: Extra Credit
2019
as Self
Game Changer
2019
as The Voicemail Musical
Dimension 20
2018
as Adaine Abernant
Dimension 20
2018
as Ruby Rocks
Dimension 20
2018
as Imelda Pulse
Dimension 20
2018
as Riva
Dimension 20
2018
as Jaysohn
Um, Actually...
2018
as Self - Contestant
Adventuring Academy
2018
as Self
Breaking News: No Laugh Newsroom
2018
as O.K. Simpson
Breaking News: No Laugh Newsroom
2018
as Jessica Crispy
Dimension 20
2018
as Princess Rosamund du Prix
Dimension 20
2018
as Misty Moore / Rowan Berry
Dimension 20
2018
as Iga Lisowski / Rowan Berry
Dimension 20
2018
as Vanellope Chapman
Dimension 20
2018
as La Contesse Madeleine d'Artois
Dimension 20
2018
as Constance
Bad Internet
2016
as The Hermione
Bad Internet
2016
CollegeHumor Does the Purge
2016
as Siobhan
Um, Actually: The Web Series
2015
as Self - Contestant
CollegeHumor Goes to Hell
2015
as Siobhan
Broad City
2014
as Leigh
Arrested Development
2003
as British Reporter