Grant O'Brien
Known for Acting · 40 credits
- Born
- 1986-05-15 (age 40)
- Place of birth
- Columbus, Ohio, USA
Known For
Dimension 20
2018
as Detective Sylvester Cross
Game Changer
2019
as Self - Contestant / Self - Guest / Self (archive footage) / Self - Contestant / The Bachelor / Self - Pitch Hopeful / Team 1 Car Wash / Patient / Self - Guard
Dimension 20's Adventuring Party
2020
as Self
Um, Actually...
2018
as Self - Contestant / Self - Guest / Bartender
Breaking News: No Laugh Newsroom
2018
as Self / Mayor's Office Staffer (voice) / Skimberly Milk / Bob Sauce / Bette Menforever / Jack Spear / Ray Romano / Inside Out Candace Bergen / Gordon Ram-It-In-Me / Baby Ducklings That Think Their Mom is a Cat / Regular Tron / Doug Smuggles / Quasi Hello Moto / Croooooob / The Bad Guy From that NWA Video / Grant O'Brien / Preti Bigtoo / Horace Race / Grant Anthony O'Brien / Jungle Jim / Here Too / A Mamma Mia Mommy / Italian Beef / Luigi Di Beppo / Code / Soundboard (voice) / Meat Spin / Carl Cum / Logan
Make Some Noise
2022
as Self - Surprise Guest
TV Shows (34)
Dimension 20
2018
as Detective Sylvester Cross
Game Changer
2019
as Self - Contestant / Self - Guest / Self (archive footage) / Self - Contestant / The Bachelor / Self - Pitch Hopeful / Team 1 Car Wash / Patient / Self - Guard
Dimension 20's Adventuring Party
2020
as Self
Um, Actually...
2018
as Self - Contestant / Self - Guest / Bartender
Breaking News: No Laugh Newsroom
2018
as Self / Mayor's Office Staffer (voice) / Skimberly Milk / Bob Sauce / Bette Menforever / Jack Spear / Ray Romano / Inside Out Candace Bergen / Gordon Ram-It-In-Me / Baby Ducklings That Think Their Mom is a Cat / Regular Tron / Doug Smuggles / Quasi Hello Moto / Croooooob / The Bad Guy From that NWA Video / Grant O'Brien / Preti Bigtoo / Horace Race / Grant Anthony O'Brien / Jungle Jim / Here Too / A Mamma Mia Mommy / Italian Beef / Luigi Di Beppo / Code / Soundboard (voice) / Meat Spin / Carl Cum / Logan
Make Some Noise
2022
as Self - Surprise Guest
Dirty Laundry
2022
as Self - Bartender
Bad Internet
2016
as The Frazier / Man (voice)
Smartypants
2024
as Self - Society Member / Self - Presenter
Cartoon Hell
2018
as Pants Palace Announcer (voice)
Parlor Room
2025
as Self
Troopers: Rise of the Budget
2019
as Wilsaban
See Plum Run
2018
Paranoia
2019
as Self - Citizen / Self - Stoner / Self - Narc
The Rank Room
2019
as Self
Gastronauts
2024
as Self - Judge
Downbeat
2019
as Charles
WTF 101
2019
as Frederick Hoelzel (voice) / Thomas FitzStephen (voice) / Andrew Jackson (voice)
Ultramechatron Team Go!
2019
as Baby Boomer (voice) / Rodney Cloverfield (voice)
Total Forgiveness
2019
as Self
Dimension 20 Animated
2021
as Detective Sylvester Cross (voice)
Thousandaires
2024
as Self - Contestant
Where in the Eff is Sarah Cincinnati?
2019
as Self - Contestant
Gods of Food
2019
as Cop
Erotic Book Club
2018
as Self - Guest / Self - Guest Host
Kingpin Katie
2019
as Grant O'Brien
Pretty Gay
2024
as Grant O'Brien
CollegeHumor Goes to Hell
2015
as Grant
Tales from the Closet
2018
as Self / Self - Guest Host
Monét's Slumber Party
2024
as Self - Party Guest
Trolley Problems
2024
as Self - Contestant
CollegeHumor Does the Purge
2016
as Grant
Erotic Clubhouse
2020
as Self - Guest Host
The Rank Room: The Web Series
2018
as Self
Movies (6)
About Grant O'Brien
Grant O'Brien is a notable figure in cinema and television, best known for contributions to Acting. With 40 credits spanning from 2015 to 2025, Grant O'Brien has appeared in 6 films and 34 TV shows.
Fans searching for Grant O'Brien movies, Grant O'Brien filmography, or the latest projects starring Grant O'Brien can stream many of these titles on CineFlixo, free and in HD, with no subscription required.
Most Popular Grant O'Brien Movies
- Plus One (2019) — as Greg
- The Disruptors (2024) — as Will Kerrigan
- Chris Grace: As Scarlett Johansson (2024) — as Grant O'Brien
- Total Forgiveness — as Self
- Katie and Erika Throw The Perfect (Valentine’s Day) Party (2025) — as Self
Where to Watch Grant O'Brien Films
Most Grant O'Brien movies and series are available to stream on CineFlixo in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Grant O'Brien, check our movies catalogue and browse page.