Life and career

O'Leary was born in Chicago, Illinois. He has two older half-sisters and an older half-brother. O'Leary auditioned for the lead in Home Alone 3

Home Alone 3

Home Alone 3 is a 1997 family comedy film written and produced by John Hughes. It is the third film in the Home Alone series and the first not to feature actor Macaulay Culkin or director Chris Columbus. The film is directed by Raja Gosnell, who served as the editor of both original films, and...

. He made his acting debut in the lead role of the 2000 made-for-television film Mom's Got a Date with a Vampire

Mom's Got a Date With a Vampire

Mom's Got a Date with a Vampire is a 2000 Disney Channel Original Movie.-Plot:The Hansen children are in a jam. Adam and his best friend Duffy have some tickets for the Headless Horseman concert, and his sister Chelsea has a date with her dreamy boyfriend Peter...

. He was subsequently cast in the thriller Domestic Disturbance

Domestic Disturbance

Domestic Disturbance is a 2001 thriller film directed by Harold Becker and stars John Travolta and Vince Vaughn. It co-stars Teri Polo, Matt O'Leary and Steve Buscemi.-Plot:...

, playing the son of John Travolta

John Travolta

John Joseph Travolta is an American actor, dancer and singer. Travolta first became known in the 1970s, after appearing on the television series Welcome Back, Kotter and starring in the box office successes Saturday Night Fever and Grease...

's character; the film was released in November 2001 and performed fairly at the box office, grossing $45 million.

O'Leary next appeared in another thriller, Frailty, directed by Bill Paxton

Bill Paxton

William "Bill" Paxton is an American actor and film director. He gained popularity after starring roles in the films Apollo 13, Twister, Aliens, True Lies, and Titanic...

, and in the kids comedy Spy Kids 2: The Island of Lost Dreams

Spy Kids 2: The Island of Lost Dreams

Spy Kids 2: The Island of Lost Dreams is a 2002 American family film, featuring spies and science fantasy elements. It was written and directed by Robert Rodriguez, and is the second film in the Spy Kids film series, which began with 2001's Spy Kids. Its plot is loosely based on Dr...

, both of which opened in 2002 to positive reviews, gaining O'Leary recognition among teenage audiences. In 2003, O'Leary had a minor role in the final Spy Kids

Spy Kids

The Spy Kids series is a series of family action adventure films written, produced and directed by Robert Rodriguez. The main plot follows the adventures of two Cortez children who become involved in their parents' espionage. The rest of their family are spies as well, including their estranged...

film, Spy Kids 3-D: Game Over

Spy Kids 3-D: Game Over

Spy Kids 3-D: Game Over is a 2003 American action-adventure family film directed by Robert Rodriguez and the third film in the Spy Kids series. It was released in the United States on July 25, 2003. The film featured the return of many cast members from the past two films, although most were in...

, and also appeared in the 2004 drama The Alamo

The Alamo (2004 film)

The Alamo is a 2004 American war film about the Battle of the Alamo during the Texas Revolution. The film was directed by Texan John Lee Hancock, produced by Ron Howard, Brian Grazer, and Mark Johnson, and distributed by Touchstone Pictures....

, although most of his role was reduced to one line.

In 2005, O'Leary had a role in Warm Springs

Warm Springs (film)

Warm Springs is a 2005 television film about American President Franklin D. Roosevelt's struggle with polio, his discovery of the Warm Springs, Georgia spa resort and his work to turn it into a center for the aid of polio victims, and his resumption of his political career...

, a television film, and Havoc

Havoc (film)

Havoc is a 2005 American film about the lives of wealthy Los Angeles, California teenagers whose exposure to hip hop culture inspires them to imitate the gangster lifestyle...

, a drama starring Anne Hathaway

Anne Hathaway (actress)

Anne Jacqueline Hathaway is an American actress. After several stage roles, she appeared in the 1999 television series Get Real. She played Mia Thermopolis in The Princess Diaries...

 that was released directly to video. O'Leary came into mainstream prominince in the later half of the 2000s for his roles in Brick, a quirky thriller starring Joseph Gordon-Levitt

Joseph Gordon-Levitt

Joseph Leonard Gordon-Levitt is an American actor whose career as both a child and adult has included television series and theatrical films....

, and the 2007 films Live Free or Die Hard

Live Free or Die Hard

Live Free or Die Hard , is a 2007 American action film, and the fourth installment in the Die Hard series. The film was directed by Len Wiseman and stars Bruce Willis as John McClane. The name was adapted from the state motto of New Hampshire, "Live Free or Die"...

and Death Sentence. His most recent starring performance was as Garret in the remake of Sorority Row

Sorority Row

Sorority Row is a 2009 American slasher film, and a re-imagining of the 1983 slasher film The House on Sorority Row. It was directed by Stewart Hendler, written by Josh Stolberg and Pete Goldfinger, and stars Briana Evigan, Leah Pipes, Rumer Willis, Jamie Chung, Margo Harshman, Audrina Patridge,...

.

Filmography

Year	Title	Role	Notes
2000	Mom's Got a Date With a Vampire Mom's Got a Date With a Vampire Mom's Got a Date with a Vampire is a 2000 Disney Channel Original Movie.-Plot:The Hansen children are in a jam. Adam and his best friend Duffy have some tickets for the Headless Horseman concert, and his sister Chelsea has a date with her dreamy boyfriend Peter...	Adam Hansen
2001	Domestic Disturbance Domestic Disturbance Domestic Disturbance is a 2001 thriller film directed by Harold Becker and stars John Travolta and Vince Vaughn. It co-stars Teri Polo, Matt O'Leary and Steve Buscemi.-Plot:...	Danny Morrison
	Frailty	Young Fenton
2002	Spy Kids 2: The Island of Lost Dreams Spy Kids 2: The Island of Lost Dreams Spy Kids 2: The Island of Lost Dreams is a 2002 American family film, featuring spies and science fantasy elements. It was written and directed by Robert Rodriguez, and is the second film in the Spy Kids film series, which began with 2001's Spy Kids. Its plot is loosely based on Dr...	Gary Giggles
2003	Spy Kids 3-D: Game Over Spy Kids 3-D: Game Over Spy Kids 3-D: Game Over is a 2003 American action-adventure family film directed by Robert Rodriguez and the third film in the Spy Kids series. It was released in the United States on July 25, 2003. The film featured the return of many cast members from the past two films, although most were in...	Gary Giggles
2004	The Alamo The Alamo (2004 film) The Alamo is a 2004 American war film about the Battle of the Alamo during the Texas Revolution. The film was directed by Texan John Lee Hancock, produced by Ron Howard, Brian Grazer, and Mark Johnson, and distributed by Touchstone Pictures....	Boy in Store
2005	Havoc Havoc (film) Havoc is a 2005 American film about the lives of wealthy Los Angeles, California teenagers whose exposure to hip hop culture inspires them to imitate the gangster lifestyle...	Eric	direct-to-video
	Brick	The Brain
	Law & Order: Criminal Intent Law & Order: Criminal Intent Law & Order: Criminal Intent is an American police procedural television drama series set in New York City, where it was also primarily produced. Created and produced by Dick Wolf and René Balcer, the series premiered on September 30, 2001, as the second spin-off of Wolf's successful crime drama...	Ethan Garrett	TV episode: "In the Wee Small Hours: Part 1 & 2"
2007	Live Free or Die Hard Live Free or Die Hard Live Free or Die Hard , is a 2007 American action film, and the fourth installment in the Die Hard series. The film was directed by Len Wiseman and stars Bruce Willis as John McClane. The name was adapted from the state motto of New Hampshire, "Live Free or Die"...	Clay	Cameo
	Death Sentence	Joe Darley
2008	Solstice Solstice (film) Solstice is a 2008 American supernatural horror remake of the Danish film Midsommer from 2003. It is directed by Daniel Myrick and co-written by Myrick, Ethan Erwin and Martin Musatov, and starring Hilarie Burton, Shawn Ashmore, Amanda Seyfried, Tyler Hoechlin, Matt O'Leary and Elisabeth...	Mark
	American Son	Jake
	Eleventh Hour Eleventh Hour (U.S. TV series) Eleventh Hour is an American science-based drama television series, which is based on the 2006 British series of the same name. The series originally ran on CBS from October 9, 2008 to April 2, 2009 and aired on Thursdays at 10 pm . The series was a joint venture between Jerry Bruckheimer...	Bobby	TV episode: "Resurrection"
2008–2009	CSI: Crime Scene Investigation CSI: Crime Scene Investigation CSI: Crime Scene Investigation is an American crime drama television series, which premiered on CBS on October 6, 2000. The show was created by Anthony E. Zuiker and produced by Jerry Bruckheimer...	Dan Forester	TV episodes: "19 Down", "One to Go" and "Mascara"
2009	Jake's Run	Jake Porter	Announced
	Anytown Anytown (film) Anytown is a 2009 drama film, written and directed by Dave Rodriguez. The film has won three film awards. "Best Picture" at the Charleston International Film Festival, "Excellence in Filmmaking" at The Method Fest and "Best Screenplay" at the Long Island International Film Expo...	Brandon O'leary
	Sorority Row Sorority Row Sorority Row is a 2009 American slasher film, and a re-imagining of the 1983 slasher film The House on Sorority Row. It was directed by Stewart Hendler, written by Josh Stolberg and Pete Goldfinger, and stars Briana Evigan, Leah Pipes, Rumer Willis, Jamie Chung, Margo Harshman, Audrina Patridge,...	Garrett
2010	Mother's Day Mother's Day (2010 film) Mother's Day is an upcoming American horror- thriller film directed by Darren Lynn Bousman. It is a remake of Charles Kaufman's 1980 film of the same name and was written by Scott Millam.-Plot:...	Jonathan "Johnny" Koffin
2011	Natural Selection Natural Selection (film) Natural Selection is a 2011 comedy-drama film written and directed by Robbie Pickering. It stars Rachael Harris, Matt O'Leary, John Diehl, and Jon Gries. The film was accepted by South by Southwest for the 2011 Narrative Feature Competition. - Synopsis :...	Raymond
	The Gatekeeper	Mark	pre-production
	Spy Kids 4: All the Time in the World Spy Kids 4: All the Time in the World Spy Kids: All the Time in the World is an American 4D family-oriented adventure film directed by Robert Rodriguez and the fourth installment in the Spy Kids series. It was released on August 19, 2011...	Gary Giggles
2012	Cinema Verite	Cameron	post-production

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