Enrolled in drama classes and began taking lessons in runway modeling when she was just 4
Had recurring roles on Australian shows Home and Away and Puberty Blues
Has stated that her older sister, actor and model Abbie Cornish, was her role model during her formative years, and that watching her do well inspired Isabelle
Was tasked by Revlon as part of their #GoSlay campaign to take photos of 24 women she thought were "slaying it," all over a 24-hour period
After making the leap to Hollywood, she went almost three years without an acting job before landing the role of Crystal in the Marvel franchise TV series Inhumans