Mischa Barton İngiliz vatandaşlığının yanı sıra, 2006 yılında Amerika Birleşik Devletleri vatandaşı olmuştur.
Filmleri
- 1995 — Slavs! — Vodya
- 1995 — Twelve Dreams — Emma
- 1995 — Polio Water — Diane
- 1996 — Where The Truth Lies — Cinda — Stage play
- 1996 — New York Crossing — Drummond — televizyon için
- 1996 — All My Children — Lily Montgomery
- 1997 — One Flea Spare — Morse — Stage Play
- 1997 — Lawn Dogs — Devon
- 1999 — Notting Hill — Çocuk oyuncu
- 1999 — Pups — Rocky
- 1999 — The Sixth Sense — Kyra
- 2000 — Paranoid — Theresa
- 2000 — Frankie & Hazel — Frankie — televizyon için
- 2000 — Skipped Parts — Maurey
- 2001 — Tart (film) — Grace
- 2001 — Lost and Delirious — Mary
- 2001 — Julie Johnson — Lisa Johnson
- 2002 — Once and Again — Katie Singer — 2001-2002
- 2002 — A Ring of Endless Light — Vikki
- 2003 — Octane — Natasha 'Nat' Wilson
- 2003 — The O.C. — Marissa Cooper — 2003-2006
- 2003 — Fastlane — Simone — "Simone Says" bölümünde
- 2006 — The Oh in Ohio — Kristen Taylor
- 2007 — Closing the Ring — Genç Ethel Ann
- 2007 — St Trinian's — J.J. French
- 2007 — Virgin Territory — Pampinea
- 2008 — Assassination of a High School President — Francesca Fachini
- 2008 — You and I — Lana Starkova
- 2012 — Into the Dark — Sophia Monet
- 2012 — Ben Banks — Amy
- 2012 — Apartment 1303 3D — Lara Slate
- 2013 — Bhopal: A Prayer for Rain — Eva Gascon
- 2013 — Resurrection, AA Resurrection — Jessie — Also producer
- 2014 — Zombie Killers: Elephant's Graveyard — Toni
- 2014 — Mining for Ruby — Jessica King
- 2014 — Hope Lost — Alina
- 2015 — L.A. Slasher — The Actress
- 2015 — Checkmate — Lauren Campbell
- 2015 — The Hoarder — Ella
- 2015 — Swat Unit: 877 — Agent Melanie Hamlin
- 2015 — American Beach House — Bayan Maureen
- 2015 — Starcrossed — Kat
- 2015 — Operator — Pamela Miller
- 2016 — Deserted — Jae
- 2017 — Monsters at Large — Katie Parker
- 2017 — The Executor — Tara
- 2018 — The Malevolent — Bayan Lowell
- 2018 — The Basement — Kelly Owen
- 2018 — The Toybox — Samantha
- 2018 — Ouija House — Samantha
- 2018 — Papa — Jennifer
- 2018 — Painkillers — Kız
- 2018 — The Cat and the Moon — Jessica Petersen
- 2020 — Spree — London
- 2022 — Invitation to a Murder — Miranda Green
