Both the series and special are executive produced by Warner Bros Unscripted TV and Warner Horizon. Robin Ashbrook and Yasmin Shackleton will executive produce the hourlong quiz show, while Casey Patterson will oversee the retrospective. As per sources, while Rowling is not directly involved in either production, Warners collaborated with her team on the content. The author's popular book series on the titular boy wizard spawned eight movie installments, which released between 2001-11, and starred Daniel Radcliffe as Harry Potter, Emma Watson as Hermione Granger and Rupert Grint as Ron Weasley.