About
John Howard Gallagher Jr. (born June 17, 1984) is an American actor and musician known for originating the role of Moritz Stiefel in Duncan Sheik and Steven Sater's rock musical Spring Awakening, which earned him a Tony Award for Best Featured Actor in a Musical. He also played Johnny in Green Day's Broadway musical, American Idiot, Lee in the 2011 Broadway production of Jerusalem, and Edmund in the 2016 Broadway revival of Long Day's Journey Into Night. He portrayed Jim Harper in Aaron Sorkin's drama series The Newsroom, starred in the HBO mini-series Olive Kitteridge, and played Emmett DeWitt in 10 Cloverfield Lane.
Known for
Law & OrderSeries • 1990
Law & Order: Special Victims UnitSeries • 1999
Law & Order: Criminal IntentSeries • 2001
The West WingSeries • 1999
WestworldSeries • 2016
The NewsroomSeries • 2012
The Only Living Pickpocket in New YorkMovie • 2026
EdSeries • 2000
EasySeries • 2016
Modern LoveSeries • 2019
Love LifeSeries • 2020
10 Cloverfield LaneMovie • 2016
UnderwaterMovie • 2020
HushMovie • 2016
Olive KitteridgeSeries • 2014
PeppermintMovie • 2018
Jonah HexMovie • 2010
Whatever WorksMovie • 2009
The Belko ExperimentMovie • 2017
Come PlayMovie • 2020
The Best of EnemiesMovie • 2019
I.S.S.Movie • 2024
Short Term 12Movie • 2013
Which Brings Me to YouMovie • 2023