Justin Bartha
Known for
An American actor born in Fort Lauderdale, Florida, best known as Doug Billings, the missing groom whose disappearance drives the plot of 'The Hangover' (2009), returning for 'The Hangover Part II' (2011) and 'Part III' (2013). He also played Nicolas Cage's tech-savvy sidekick Riley Poole in 'National Treasure' (2004) and 'National Treasure: Book of Secrets' (2007). A likeable, easygoing screen presence, Bartha has moved between studio comedies, independent films and television. A dependable supporting player, he is most familiar from two of the most successful comedy and adventure franchises of the 2000s.
Justin Bartha
26 Movies
9 Series
An American actor born in Fort Lauderdale, Florida, best known as Doug Billings, the missing groom whose disappearance drives the plot of 'The Hangover' (2009), returning for 'The Hangover Part II' (2011) and 'Part III' (2013). He also played Nicolas Cage's tech-savvy sidekick Riley Poole in 'National Treasure' (2004) and 'National Treasure: Book of Secrets' (2007). A likeable, easygoing screen presence, Bartha has moved between studio comedies, independent films and television. A dependable supporting player, he is most familiar from two of the most successful comedy and adventure franchises of the 2000s.
Movies
Plays Doug Billings
The Hangover
2009
Plays Doug Billings
The Hangover Part II
2011
Plays Riley Poole
National Treasure
2004
Plays Doug Billings
The Hangover Part III
2013
Plays Riley Poole
National Treasure: Book of Secrets
2007
Plays Simon Keeley
Sweet Girl
2021
Plays Justin, Sarah's Boyfriend
New York, I Love You
2008
Plays Ace
Failure to Launch
2006
Plays Aram Finklestein
The Rebound
2009
Plays Kelly
White Girl
2016
Plays David Gladstone
Dear Zoe
2022
Plays Brian
Gigli
2003
Producer
Plays Jack
Every Jack Has a Jill
2009
Plays Stiv Bators
CBGB
2013
Plays Howard Weitzman
Driven
2019
Plays Jasper Bernard
Trust the Man
2005
Plays Ken
Sorry For Your Loss
2018
Plays Richard
Dark Horse
2012
Plays Peter Hobbs
Against the Clock
2019
Plays Bryan
Sticky Notes
2017
Plays Yosef Zimmerman
Holy Rollers
2010
Plays Jack Langer
Nuked
2025
TV Shows
Plays David Sawyer
The New Normal
2012
Plays Colin Morello
The Good Fight
2017
Plays Josh Barret
Cooper Barrett's Guide to Surviving Life
2016
Plays Jack Werner (voice)
WWII in HD
2009
Plays Jeff Cahill
Teachers
2006
Plays Robert Morgenthau
Godfather of Harlem
2019
Plays Justin Bartha
The Other Two
2019
Plays Marshall Johnson
Atlanta
2016
Plays Riley Poole
National Treasure: Edge of History
2022
Latest Trailers
Watch Trailer
Influenced
Full Filmography
Influenced
Jordan
2026
Film
Nuked
Jack Langer
2025
Film
Godfather of Harlem
Robert Morgenthau · 2 episodes
2023
TV
Atlanta
Marshall Johnson · 1 episode
2022
TV
National Treasure: Edge of History
Riley Poole · 1 episode
2022
TV
Dear Zoe
David Gladstone
2022
Film
The Other Two
Justin Bartha · 1 episode
2021
TV
Sweet Girl
Simon Keeley
2021
Film
Driven
Howard Weitzman
2019
Film
Photos
Frequently Asked Questions
How old is Justin Bartha and where are they from?
Justin Bartha is 48 years old, born on July 21, 1978 in Fort Lauderdale, Florida, USA.
What are the most famous roles of Justin Bartha?
Justin Bartha is best known for roles in The Hangover, The Hangover Part II, The Hangover Part III.
How many movies has Justin Bartha been in?
Over a 28-year career (since 1998), Justin Bartha has appeared in 26 movies and 8 TV shows.
What was Justin Bartha's first movie?
The career of Justin Bartha began with 54 (1998).
What is Justin Bartha's most recent movie or series?
Justin Bartha's most recent release is Influenced, which premiered on May 8, 2026.
What TV shows has Justin Bartha appeared in?
On television, Justin Bartha has appeared in Atlanta, Godfather of Harlem, The Good Fight, Conan.
Justin Bartha
1978-07-21 · Fort Lauderdale, Florida, USA
Justin Bartha (born July 21, 1978) is an American film and television actor, best known for his co-starring role as Riley Poole in the National Treasure feature films and as Doug Billings in The Hangover.