John Gallagher Jr.
Known for: Acting
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.
Filmography
Series
Law & Order: Special Victims Unit
Jeff Lynwood
1999
Series
Law & Order
Terrence Holt
1990
Series
Law & Order: Criminal Intent
Gary
2001
Series
The West Wing
Tyler
1999
Series
Westworld
Liam Dempsey
2016
Series
Stars in the House
Self
2020
Series
The Newsroom
James Harper
2012
Series
Ed
Eric
2000
Film
The Exorcist: Martyrs
2027
Series
Love Life
Luke Ducharme
2020
Series
Modern Love
Rob
2019
Series
Easy
Lucas
2016
Film
10 Cloverfield Lane
Emmett
2016
Film
Underwater
Liam Smith
2020
Series
Art That Made Us
Self - Associate Prof. of Early Modern History
2022
Film
Hush
The Man
2016
Series
Olive Kitteridge
Christopher Kitteridge
2014
Film
Jonah Hex
Second Lt. Evan
2010
Film
Which Brings Me to You
Wallace
2023
Film
Short Term 12
Mason
2013
Series
Hallmark Hall of Fame
Gary
1951
Film
Peppermint
Detective Stan Carmichael
2018
Film
The Belko Experiment
Mike Milch
2017
Series
Love Monkey
Paul
2006
Film
Whatever Works
Perry
2009
Film
Come Play
Marty
2020
Film
The Miseducation of Cameron Post
Reverend Rick
2018
Film
The Best of Enemies
Lee Trombley
2019
Film
I.S.S.
Christian Campbell
2024
Film
Gone in the Night
Max
2022
Film
Margaret
Darren
2011
Film
Abandoned
Alex
2022
Film
Pieces of April
Timmy Burns
2003
Film
The Flamingo Rising
Gary
2001
Film
The Same Storm
Dale Salt
2022
Film
The Good Student
Brett Mullen
2006
Film
Spring Awakening: Those You've Known
Self - Moritz
2022
Swim Fishy
Abel
Film
American Woman
Juan
2019
Short Term 12: Behind the Scenes
Self
2014
Film
The Heart Machine
Cody
2014
Film
Eleven Days
2026
Film
Sadie
Cyrus
2018
20/20
Film
Broadway Idiot
Self (archive footage)
2013