Throughout her entertainment career as an accomplished actress, Holly O'Brien graced the silver screen many times. She worked in series television while getting her start in acting, including a part on "All Souls" (UPN, 2000-01). She additionally landed roles in the TV movies "Portrait of Murder" (Warner Bros. Television Network, 2001-02) and "Obsessed" (Lifetime, 2002-03). In the early 2000s and the 2010s, she worked on the silver screen, taking roles in the dramatic musical "I'm Not There" (2007) with Christian Bale, the dramatic comedy "Magique!" (2008) with Marie Gillain and the fantastical drama "Upside Down" (2013) with Jim Sturgess. She also worked in television around this time, including a part on "The Business (IFC)" (IFC, 2006-08). Most recently, O'Brien appeared on the Alison Darcy documentary "The Wanted 18" (2015).