Jillian Grace Harper was born on December 20, 1985, in Arkansas and grew up in Washington, Missouri. Her mother Katharine Walter sent photos and a letter about Grace to legendary shock jock Howard Stern. Jillian subsequently made a guest appearance on Stern's show. "Playboy" Senior Photo Editor Kevin Kuster also happened to be on that same episode and automatically deemed Grace ideal "Playboy" material. She did a test shoot and was eventually chosen to be the Playmate of the Month in the March 2005 issue of the famous men's magazine. Jillian not only has appeared as herself on several episodes of the reality TV series The Girls Next Door (2005) but also has small roles in the films Epic Movie (2007), The Comebacks (2007) and The House Bunny (2008). Grace has a more substantial part in the short The Agonist (2007).