Mona Sax is a fictional character in the neo-noir media franchise Max Payne, where she represents the femme fatale archetype. Mona is a mysterious contract killer in a dangerous relationship with the series' titular protagonist, the policeman-turned-vigilante Max Payne. The character was portrayed by Kathy Tong and voiced by Julia Murney and Wendy Hoopes in the video games, and was played by Mila Kunis in the film adaptation.