Born in Lindsay, Ontario, Park began her acting career with small parts starting at age 6.She attended Oakridge Secondary School, in London, Ontario.
Her largest role to date has been in the ABC Family series The Secret Life of the American Teenager, where she plays one of the main characters, Grace Bowman, a conservative Christian teen and cheerleader who, along with her boyfriend, struggle with her purity vow until marriage.
In 2013, Park lost the role of Nicki in the sitcom Undateable to Briga Heelan.
Heelan had originally been cast in the role, but was believed to be unable to continue when her sitcom Ground Floor was renewed for a second season.
The part was recast with Park, however when Heelan's schedule was adjusted to allow her to appear on both shows, Heelan took back the role.
The girl band also includes pop star Miley Cyrus's older half-sister, Brandi Cyrus.
As of 2010, Park has left the band to focus on her acting career in the TV series The Secret Life of the American Teenager.Park also appeared, together with Tyler Hilton, in a music video called "(Kissed You) Good Night" recorded by the American country music group Gloriana.In July 2006, Park started dating actor and singer Tyler Hilton, after meeting him on the set of Charlie Bartlett.The Live Recordings of Tyler Hilton and Kate Voegele’s performance “Live in London” from August 8th and 9th, 2015 are now available or Pre-Order.This double disk is signed by both Tyler Hilton and Kate Voegele, and includes a duet version of “When The Stars Go Blue” by Tyler and Kate.This is a Pre-Order and orders will ship on a targeted date of December 1st 2015.