Manuel Harlan A production photo from "Harry Potter and the Cursed Child" in London.
This post contains spoilers for "Harry Potter and the Cursed Child."
"Harry Potter and the Cursed Child" might become a movie. Not any time soon. But we can dream.
In any case, I put together a dream cast for a movie adaptation of the play. I'm sure the actors in the theatrical production are fine, but it's all the way in London, so I haven't seen it and can't say for myself. Here, I've cast the main actors based on the strength of their on-screen work. I've also tried to keep Rowling's rule on having only British actors in "Harry Potter" movies, and I've avoided actors who were already in the "Harry Potter" series, because that would be confusing.
For returning characters, the original actors would do a great job. By the time this movie gets made, two decades might pass, anyway, syncing up the actors' ages with the character ages.
Here's our dream cast for a "Harry Potter and the Cursed Child" movie if it were made now.