Grant O'Brien
Acting
TV Shows(34)
Parlor Room
2025
Gastronauts
Self - Judge
2024
Monét's Slumber Party
Self - Party Guest
2024
Thousandaires
Self - Contestant
2024
Smartypants
Self - Society Member
2024
Trolley Problems
Self - Contestant
2024
Pretty Gay
Grant O'Brien
2024
Make Some Noise
Self - Surprise Guest
2022
Dirty Laundry
Self - Bartender
2022
Dimension 20 Animated
Detective Sylvester Cross (voice)
2021
Erotic Clubhouse
Self - Guest Host
2020
Dimension 20's Adventuring Party
Self
2020
Where in the Eff is Sarah Cincinnati?
Self - Contestant
2019
Ultramechatron Team Go!
Baby Boomer (voice)
2019
Game Changer
Self - Contestant
2019
Gods of Food
Cop
2019
Kingpin Katie
Grant O'Brien
2019
Paranoia
Self - Citizen
2019
Troopers: Rise of the Budget
Wilsaban
2019
Downbeat
Charles
2019
The Rank Room
Self
2019
Total Forgiveness
Self
2019
WTF 101
Frederick Hoelzel (voice)
2019
Erotic Book Club
Self - Guest
2018
Tales from the Closet
Self
2018
Um, Actually...
Self - Contestant
2018
Cartoon Hell
Pants Palace Announcer (voice)
2018
See Plum Run
2018
Dimension 20
Detective Sylvester Cross
2018
The Rank Room: The Web Series
Self
2018
Breaking News: No Laugh Newsroom
Self
2018
CollegeHumor Does the Purge
Grant
2016
Bad Internet
2016
CollegeHumor Goes to Hell
Grant
2015
