- Leigh Whannell
- Melbourne, Victoria, Australia
- January 17, 1977
Leigh Whannell is an Australian screenwriter, producer, director and actor. He is best known for writing movies directed by his friend James Wan, including Saw (2004), Dead Silence (2007), Death Sentence (2007), Insidious (2011) and Insidious: Chapter 2 (2013).