Mariah O'Brien Filmography
- Actor (24 credits)
- Going to Whatstock? (2008)
- Jam (2006) Rose
- Sex, Love & Secrets (2005) Nora Hollister
- Jam (2004) Rose
- Lovely & Amazing (2001) Kevin's TV Co-Star
- Ordinary Madness (2001) Betty
- Puzzled (2001) Alexandra Norton
- Ticker (2001) Desperate Woman
- Pussykat (2000)
- Diamonds (1999) Tiffany
- Being John Malkovich (1999) Girl Creeped Out by Malkovich
- G vs E (1999) Marci Welby
- The Mod Squad (1999) Tiffany
- Once and Again (1999) Brandi
- Some Girl (1998) Thrift Store Cashier
- Together & Alone (1998) Buffy
- Lone Greasers (1998) Jezzabel
- Kiss & Tell (1997) Emma the Sketch Artist
- Welcome Says the Angel (1996) Waitress at Toi
- Nowhere Man (1995) Nurse
- Halloween: The Curse of Michael Myers (1995)
- Redd Kross: The Lady in the Front Row (1993) Fan
- The Nanny (1993) Young Jewish Woman
- Gas, Food Lodging (1992) Ivy
