Bangjong Pisanthanakun is a Thai filmmaker and screenwriter. He saw early success with his first two films, Shutter and Alone, both horror films that he co-directed and co-wrote with Parkpoom Wongpoom. He also directed the 2013 comedy-horror romance film Pee Mak, which became Thailand's highest-grossing film of all time, and the 2021 horror film The Medium, which was a commercial and critical success in South Korea.