Long before Amazon Studios released the Emmy-nominated telefilm Red, White & Royal Blue, the story had legions of dedicated fans. Casey McQuiston’s 2019 book, on which the film is based, launched the 33-year-old author’s now lengthy career as a new-adult novelist, writing about characters in their late teens and early twenties. When news of an adaptation hit the internet, fans of the novel flooded social media with their casting ideas for the story’s main characters, Alex Claremont-Diaz, the first son of the United States, and his nemesis turned beau, Prince Henry, the “spare” British prince. Ultimately, the roles went to Taylor Zakhar Perez (Alex) and Nicholas Galitzine (Henry).
McQuiston, an executive producer on the Matthew López film, is now co-writing the sequel, announced in May, alongside the screenwriter and director.…