Katherine O'Sullivan Filmography
- Actor (13 credits)
- Birdman or (The Unexpected Virtue of Ignorance) (2014) Costume Assistant
- Hungry Hearts (2014) Psychic
- Switchback (2010) Mary O'Roarke
- Contact (2009) Mother
- The Old Man and the Seymour (2009) Olga
- The Blood Shed (2007) Leslie
- Six Degrees (2006) Sister Mary Ann Cronin, not listed in creditsа
- Kinsey (2004) Woman Leaving Lecture, not listed in creditsа
- Shortcut to Happiness (2004) Charlotte Bronte
- I'll Bury You Tomorrow (2002) Nettie Beech
- The Emperor's Club (2002) The Nun
- Artemin Goldberg: Custom Tailor of Brassieres (2000) Mrs. Erickson
- Curtain Call (1997) Butterfly guest at Ball, not listed in creditsа
