HARRY POTTER: TV Series | Teaser Trailer Concept (2026)

One of the best OG recasting theories surrounding the upcoming Harry Potter show was starting to become more and more plausible, but a new casting update has finally debunked it. The cogwheels of production for the highly anticipated Harry Potter TV series are rushing as new casting updates are being announced each day. Following some of the latest casting updates for HBO's Harry Potter, it looks like nearly all major characters from the opening arcs of the original story have been cast.

While it will always be debatable whether the right casting choices have been made for the series, some actors seem to be the perfect fit for their roles in the Harry Potter TV show. Speaking of perfect castings, one original Harry Potter actor's return was being widely theorized for the TV show. However, as some of the latest casting updates have confirmed, the theory has now officially been put to rest.