Brook Maurio (née Busey; born June 14, 1978), known professionally by the pen name Diablo Cody, is an American writer, producer, and author. She gained recognition for her candid blog and subsequent memoir, Candy Girl: A Year in the Life of an Unlikely Stripper (2005). Cody received critical acclaim for her screenwriting debut film, Juno (2007), winning the Academy Award for Best Original Screenplay, the BAFTA Award for Best Original Screenplay, the Independent Spirit Award for Best First Screenplay, and the Writers Guild of America Award for Best Original Screenplay.
Cody created, wrote, and produced the Showtime comedy-drama series United States of Tara (2009–2011). She wrote, produced, and made her directorial debut with the comedy-drama film Paradise (2013). Cody also wrote and produced the horror-comedy film Jennifer's Body (2009), the comedy-drama film Young Adult (2011), which earned her a second nomination for the Writers Guild of America Award for Best Original Screenplay, the musical comedy film Ricki and the Flash (2015), and the comedy-drama film Tully (2018).
In October of 2020, Cody was nominated for a Tony Award for Best Book of a Musical for Jagged Little Pill, her first musical-theater undertaking. She has been a member of the Academy of Motion Picture Arts and Sciences in the Writer's Branch since 2008.