Leigh Whannell
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.