Acting
Grant O'Brien
Born
1986-05-15 (40)
Place of birth
Columbus, Ohio, USA
Known for
Acting
Credits
45 titles
Known for
9.1Heed the call of adventure and enter Dimension 20 where Game Master Brennan Lee Mulligan, joined by comedians and pro gamers, blends comedy with tabletop RPGs.
Dimension 20
2018
8.4In this game show, the game changes every show! Players begin each round without knowing the rules -- and must figure them out while competing to win.
Game Changer
2019
8.8A Dimension 20 talkback show where GM and players discuss the events of the latest episode.
Dimension 20's Adventuring Party
2020
8.6Introducing a game show of fandom minutiae one-upmanship, where nerds do what nerds do best: flaunt encyclopedic nerd knowledge at Millennium Falcon nerd-speed.
Um, Actually...
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
6.8Longtime single friends, Ben and Alice, agree to be each other's respective plus one at every wedding they're invited to, during a busy summer of wedding fever.
Plus One
2019
Film credits
2020s · 4 titles
NRKatie and Erika are going to throw the perfect Father's Day party. Yes, both of their dads are dead. But that doesn't mean we can't live for today! Following their sold-out valentine's day event (now available here as bonus content!) and produced by Laser Webber (Laservision Productions)—you can expect improv games and a long-form set from Dropout favorites, an educational presentation, and special meet-and-greets with your new dad!
Katie & Erika Throw the Perfect Father’s Day Party
2025
NRThis Valentine’s Day, Erika Ishii and Katie Marovitch are inviting their friends to a holiday party that will be perfect. You’ll see Aabria Iyengar and Erika talk about MonsterLoving, see a RANK ROOM revival, and enjoy some longform improv from and incredible all-star cast!!
Katie and Erika Throw The Perfect (Valentine’s Day) Party
2025
7.0Chris Grace wrestles with the ideas of casting & diversity in Hollywood in this meta comedy special.
Chris Grace: As Scarlett Johansson
2024
6.3Will, a ride-share driver, and Glenn, a shut-in hacker, are best friends who scheme to rip off Will's customers. When it all falls apart, they try to turn their luck around by scamming famed venture capitalist billionaire Bruce Marcus.
The Disruptors
2024
Series credits
9.1Heed the call of adventure and enter Dimension 20 where Game Master Brennan Lee Mulligan, joined by comedians and pro gamers, blends comedy with tabletop RPGs.
Dimension 20
2018
8.4In this game show, the game changes every show! Players begin each round without knowing the rules -- and must figure them out while competing to win.
Game Changer
2019
8.4In this game show, the game changes every show! Players begin each round without knowing the rules -- and must figure them out while competing to win.
Game Changer
2019
8.4In this game show, the game changes every show! Players begin each round without knowing the rules -- and must figure them out while competing to win.
Game Changer
2019
8.4In this game show, the game changes every show! Players begin each round without knowing the rules -- and must figure them out while competing to win.
Game Changer
2019
8.4In this game show, the game changes every show! Players begin each round without knowing the rules -- and must figure them out while competing to win.
Game Changer
2019
8.4In this game show, the game changes every show! Players begin each round without knowing the rules -- and must figure them out while competing to win.
Game Changer
2019
8.4In this game show, the game changes every show! Players begin each round without knowing the rules -- and must figure them out while competing to win.
Game Changer
2019
8.4In this game show, the game changes every show! Players begin each round without knowing the rules -- and must figure them out while competing to win.
Game Changer
2019
8.8A Dimension 20 talkback show where GM and players discuss the events of the latest episode.
Dimension 20's Adventuring Party
2020
8.6Introducing a game show of fandom minutiae one-upmanship, where nerds do what nerds do best: flaunt encyclopedic nerd knowledge at Millennium Falcon nerd-speed.
Um, Actually...
2018
8.6Introducing a game show of fandom minutiae one-upmanship, where nerds do what nerds do best: flaunt encyclopedic nerd knowledge at Millennium Falcon nerd-speed.
Um, Actually...
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018
8.3In this newsroom, breaking means losing. Our reporters don't know what's about to be on the teleprompter, and every laugh is a point against them.
Breaking News: No Laugh Newsroom
2018