Hunt-Ballard was born in Mt Gambier, South Australia and raised in Largs Bay.
[1] Her Northern Ireland-born father was a social worker and music therapist, and her mother a primary school teacher.
Early roles include the casts of the musicals Eureka (2004), Jersey Boys and Metro Street (2009).
[2] Hunt-Ballard is best known for performing the title roles in the original Australian cast of Mary Poppins (2010) and the Hayes Theatre revival of Sweet Charity (2014).
For each role, she received the Helpmann Award for Best Female Actor in a Musical.She also performed in Vivid White (2017) ,and Funny Girl in Concert at The Opera House (2018).