Isabella Heathcote (born c. 1987) is an Australian actress. Following her film debut in Acolytes (2008), she had a recurring role as Amanda Fowler on the television soap opera Neighbours (2009). She gained further recognition for her dual roles as Victoria Winters and Josette du Pres in the dark fantasy film Dark Shadows (2012), and Olive Byrne in the biographical drama film Professor Marston and the Wonder Women (2017).
Heathcote has since appeared in several films, including In Time (2011), Pride and Prejudice and Zombies, The Neon Demon (both 2016), Fifty Shades Darker (2017), and Relic (2020). On television, she played Nicole Dörmer on the second and third seasons of the Amazon Prime Video dystopian alternate history series The Man in the High Castle (2016–18), Susan Parsons on the Paramount+ historical drama series Strange Angel (2018–19), and Andy Oliver in the Netflix drama thriller series Pieces of Her (2022).