Leigh Whannell is an Australian screenwriter, producer, director, and actor. He is best known for writing films directed by his friend James Wan, including Saw, Dead Silence, Insidious, and Insidious: Chapter 2. Whannell has directed two films, Insidious: Chapter 3, released in 2015, and Upgrade, released in 2018. Whannell and Wan are the creators of the Saw franchise.