Stacy Martin is a French actress. Her breakthrough role was playing Joe as a young woman in Lars von Trier's 2013 drama film Nymphomaniac. Other credits include The Childhood of a Leader (2015), All the Money in the World (2017), Amanda (2018), The Evening Hour (2020), Lovers (2020), and The Serpent (2021).

Lars von Trier is a Danish film director and screenwriter.