Who co-wrote the original story for Harry Potter and the Cursed Child with J.K. Rowling?

Jack Thorne and John Tiffany co-wrote the original story for Harry Potter and the Cursed Child with J.K. Rowling.

The stage production was written by Jack Thorne and directed by John Tiffany. Its story is credited to Rowling, Thorne, and Tiffany, while Thorne wrote the script. The play premiered in London’s West End in 2016 and is set nineteen years after the events of Harry Potter and the Deathly Hallows.

The story follows adult Harry Potter, now a Ministry of Magic employee, and his son Albus Severus Potter. It was created as a theatrical sequel rather than as an eighth novel in the original book series. The published script is a stage-play script, not a prose novel written solely by Rowling.

That distinction explains why several names are connected with the work. Rowling supplied the original story concept with Thorne and Tiffany, Thorne wrote the stage script, and Tiffany directed the production. The answer therefore requires both collaborators rather than only the most visible author name.