Updated Feb 20, 2026
Details
Known For
Actor
Occupations
Film actor, Composer, Television actor, Actor, Musical theatre actor
Birthday
(Sunday)
Birthplace
Wilmington, Delaware, USA
Nationality
Citizenship
United States
Languages
English
Education
Brandywine High School
Zodiac Sign
♊ Gemini
Chinese Zodiac
鼠 Rat
Name Origin
English < Hebrew (יוֹחָנָן)
Popularity
Tier B -- 22,244 Wikipedia views/month
DROPTHE_ GOSSIP
Screen debut
First screen credit at age 21
Year context
Born in 1984 -- Apple Macintosh introduced; Bhopal disaster in India; Ronald Reagan was US president
Year 1984 →
Career
Career spanning 14 years (2006-2020)
Zodiac
Born in the Year of the Rat
DROPTHE GOOD_
8
Recognized
out of 100
Most people on Earth score 0. Only those with measurable positive impact appear on this scale.
Human Impact
0
Innovation
0
Giving
0
Sustainability
35
Cultural Uplift
42
Public Vote
★
★
★
★
★
Be the first to vote
Filmography (11)
AWARDS (1)
G
Tony Award for Best Featured Actor in a Musical
2007
WON
Biography
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.
Related People
Frequently Asked Questions
How old is John Gallagher Jr.?
John Gallagher Jr. is 41 years old, born on .
Where was John Gallagher Jr. born?
John Gallagher Jr. was born in Wilmington, Delaware, USA.
What movies or shows has John Gallagher Jr. been in?
John Gallagher Jr. has 11 credits in our database. Notable titles include Come Play (2020), Underwater (2020), Modern Love (2019), American Woman (2019), 10 Cloverfield Lane (2016).
What is John Gallagher Jr. known for?
John Gallagher Jr. is primarily known as an actor. 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…
Where can I find more information about John Gallagher Jr.?
You can find more about John Gallagher Jr. on IMDB, TMDB, Wikidata. Their full profile and filmography is available on this page.
