
Mischa Barton
Biography
Mischa Anne Marsden Barton (born 24 January 1986) is a British-American film, television, and stage actress. She began her career onstage, appearing in Tony Kushner's Slavs! and took the lead in James Lapine's Twelve Dreams at New York City's Lincoln Center. She made her screen debut with a guest appearance on the American soap opera All My Children (1995) and voicing Betty Ann Bongo on the Nickelodeon cartoon series KaBlam! (1996–97). Her first significant film role was as the protagonist of Lawn Dogs (1997), a drama co-starring Sam Rockwell. She appeared in major pictures such as the romantic comedy Notting Hill (1999) and M. Night Shyamalan's psychological thriller The Sixth Sense (1999). She also starred in the indie crime drama Pups (1999).
Barton later appeared in the independent drama Lost and Delirious (2001) and guest-starred as Evan Rachel Wood's girlfriend on ABC's Once and Again (2001–02). She played Marissa Cooper in the Fox television series The O.C.(2003–2006), for which she received two Teen Choice Awards. The role brought Barton into mainstream fame, and Entertainment Weekly named her the "It Girl" of 2003.
Barton has since appeared in the comedy remake St Trinian's (2007), the Richard Attenborough–directed drama Closing the Ring (2007) and Assassination of a High School President (2008). She returned to television, starring in the short-lived Ashton Kutcher-produced CW series The Beautiful Life (2009).
In 2012, she returned to the stage, performing in the Irish production of Steel Magnolias. She also appeared alongside Martin Sheen in Bhopal: A Prayer for Rain (2014). She has garnered critical praise for her roles in independent films, with the Los Angeles Times praising her "standout" performance in Starcrossed (2014). Barton was cast in the first season of the MTV series The Hills: New Beginnings (2019–2021), a reboot of The Hills. In 2023, she was cast in an extended guest role for the rebooted Australian soap opera Neighbours on Amazon Freevee and Network 10.
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Known For

TV
Law & Order: Special Victims Unit
Gladys Dalton
1999

TV
The View
Self
1997

TV
Jimmy Kimmel Live!
Self
2003

TV
LIVE with Kelly and Mark
1988

TV
Neighbours
Reece Sinclair
1985

TV
Dancing with the Stars
Self - Contestant
2005

TV
Late Night with Conan O'Brien
Self - Guest
1993

TV
The O.C.
Marissa Cooper
2003

TV
The Ellen DeGeneres Show
Self
2003

Film
Murder at the Embassy
Miranda Green
2025

TV
Punk'd
Self
2003
TV
The Tony Danza Show
Self
2004

Film
The Sixth Sense
Kyra Collins
1999

TV
On Air with Ryan Seacrest
Self - The O.C.
2004

TV
Fastlane
Simone Collins
2002

TV
Once and Again
Katie Singer
1999

TV
Entertainment Tonight
Self
1981

TV
Recovery Road
Olivia
2016

TV
KaBlam!
Betty Ann Bongo (voice)
1996

Film
Notting Hill
12-year-old Actress
1999
Filmography
2026FilmSleepwalkeras Joelle2025FilmMurder at the Embassyas Miranda Green2025FilmChristmas at Fields Ranchas Angela2023FilmInvitation to a Murderas Miranda Green2020FilmSpreeas London2019FilmThe Cat and the Moonas Jessica Peterson2019TVThe Hills: New Beginningsas Self2019FilmPainkillersas The Girl / Sarah Mendelsohn2018FilmThe Basementas Kelly Owen2018FilmThe Toyboxas Samantha2018FilmPapaas Jennifer2018FilmMonsters at Largeas Katie Parker2018FilmOuija Houseas Samantha2017FilmThe Joneses Unpluggedas Rebecca Jones2016FilmThe Malevolentas Ms Lowell2016FilmDesertedas Jae2016FilmExecutoras Tara2016TVRecovery Roadas Olivia2015FilmSwat: Unit 887as Agent Melanie Hamlin2015FilmOperatoras Pamela Miller2015FilmCheckmateas Lauren Campbell2015FilmAmerican Beach Houseas Ms. Maureen2015FilmL.A. Slasheras The Actress2015FilmThe Hoarderas Ella2015FilmZombie Killers: Elephant's Graveyardas Toni2015FilmHope Lostas Alina2014FilmThrowdownas Lisa Thoams2014FilmA Prayer for Rainas Eva2014FilmStarcrossedas Kat2014FilmMining for Rubyas Jessica King2013FilmA Resurrectionas Jessie2012FilmI Will Follow You Into the Darkas Sophia Monet2012FilmApartment 1303 3Das Lara Slate2012FilmCyberstalkeras Aiden Ashley2012FilmBeauty and the Leastas Amy Warner2011FilmYou and Ias Lana2010FilmDon't Fade Awayas Katherine Morrison2009TVThe Beautiful Life: TBLas Sonja Stone2009FilmHomecomingas Shelby Mercer2009TVChris Moyles' Quiz Nightas Self2009FilmWalled Inas Sam Walczak2008FilmAssassination of a High School Presidentas Francesca Fachini2007FilmSt Trinian'sas JJ French2007FilmVirgin Territoryas Pampinea2007FilmClosing the Ringas Young Ethel Ann2006FilmThe Oh in Ohioas Kristen Taylor2005TVDancing with the Starsas Self - Contestant2005TVThe Friday Night Projectas Self - Host2004TVThe Tony Danza Showas Self2004TVOn Air with Ryan Seacrestas Self - The O.C.2003TVThe Ellen DeGeneres Showas Self2003TVThe O.C.as Marissa Cooper2003FilmOctaneas Natasha 'Nat' Wilson2003TVPunk'das Self2003TVJimmy Kimmel Live!as Self2002TVFastlaneas Simone Collins2002FilmA Ring of Endless Lightas Vicky Austin2001FilmTartas Grace Bailey2001FilmJulie Johnsonas Lisa Johnson2001FilmLost and Deliriousas Mary 'Mouse' Bedford2000FilmParanoidas Theresa2000FilmFrankie & Hazelas Francesca 'Frankie' Humphries2000FilmSkipped Partsas Maurey Pierce1999TVOnce and Againas Katie Singer1999TVLaw & Order: Special Victims Unitas Gladys Dalton1999FilmThe Sixth Senseas Kyra Collins1999FilmNotting Hillas 12-year-old Actress1999FilmPupsas Rocky1999FilmAn Off-Beats Valentine'sas Betty Ann Bongo (voice)1997FilmLawn Dogsas Devon Stockard1997TVThe Viewas Self1996FilmNew York Crossingas Drummond1996TVThe Off-Beatsas Betty Anne Bongo (voice)1996TVKaBlam!as Betty Ann Bongo (voice)1996TVE! True Hollywood Storyas Self (archive footage)1993TVLate Night with Conan O'Brienas Self - Guest1988TVLIVE with Kelly and Mark1985TVNeighboursas Reece Sinclair1981TVEntertainment Tonightas Self—FilmDragonMan: The Adventures of Luke Starras Crystal Starr—FilmBad News on the Doorstep—FilmThe Mystery of the Golden Spearas Miranda Green