Mohd Syamsul Mohd Yusof is a Malaysian actor, film director, writer, producer, rapper and singer. He is the son of producer and director Yusof Haslam. He is the youngest director to win the Malaysian Film Festival for Best Director award, doing so at the age of 25.
Having won best director awards six times ever since at the Malaysian Film Festival and Anugerah Skrin, and was named Best Director at the 57th Asia Pacific Film Festival in Cambodia for his work in the horror/religious movie Munafik. In 2018, its sequel, Munafik 2, set a record as the highest grossing Malaysian film, which it held until it was surpassed by his 2022 epic war film Mat Kilau.