O'Neill is an actress, and professional fine artist. The only girl out of five children from an Irish, Catholic family. Born and raised in the Philadelphia area. She graduated from West Chester University in 1996 with a BFA in Fine Arts and started her career in Graphic Design. O'Neill was discovered later in life as a mature face model for Dennis Gross skincare out of NYC, which airs on QVC. Not long after O'Neill was approached by a local casting company. She started her film career as a "walk on" VIP extra for the movie "Creed" (2015). Soon after she was approached for several, small, independent films. Unique (2015).
O'Neill is working and living in the Philadelphia area.