Trivia

Is a champion chess player.

She is fluent in American Sign Language.

Automobile enthusiast and used to spend time racing at the drag strip. And also knows how to ride a motorcycle. Used to ride a Kawasaki ninja sport bike.

Was a stunt person in a live western stunt show.

A character's image in the sci-fi universe of the Mass Effect (2007) video games trilogy, Liara T'soni, was created using Jillian's face and body.

On the set of The Graves (2009) her fist accidentally went through a glass door mid scene. She continued the scene drenched in blood. In the final cut of the film you can still see the glass wedged in her finger.

(September 14, 2017) Married her boyfriend of 7 years Dean Geyer following a 9-month-long engagement. They exchanged custom vows in front of 75 of their closest family and friends at a boutique venue in Santa Ynez Valley.

Mother's family is Scottish and fathers family is Irish.

Went to the same high school in Wyomissing, PA, as Taylor Swift.

Is in a relationship with (her now husband) actor Dean Geyer since October 2010.

Jillian has a teacup Yorkshire terrier named Bijou.