Peter Serafinowicz has been cast as Peeves the Poltergeist in HBO's new Harry Potter TV series, announced in September 2026 [1, 2]. Peeves is a mischievous ghost character from the Harry Potter books who was not included in the original film adaptations [1, 2]. The character was originally planned and filmed for the first Harry Potter film, but director Chris Columbus removed Peeves in post-production due to dissatisfaction with the design [1, 2].
According to the Harry Potter official website, "Peeves enjoyed nothing more than causing chaos in the school corridors. A constant nuisance, no one disliked Peeves more than the school's caretaker, Argus Filch, who was the one tasked with cleaning up the mess" [1].
HBO’s Harry Potter series will span eight seasons, each with approximately eight to ten hours of runtime, allowing for an expanded and detailed adaptation of the books [2]. The first season will adapt Harry Potter and the Philosopher's Stone and is scheduled to premiere on HBO this Christmas 2026 [1, 2].
It remains unclear if Peeves will appear in the first season or if the character will debut in season two, which is expected to start filming in fall 2026 [2].
The extended format and detailed storytelling mark a departure from the films, offering fans a chance to see previously omitted characters like Peeves brought to life.
