HarryPotter is an upcoming fantasy television series developed for HBO. The series is based on the series of eponymous fantasy books by English author J. K. Rowling. HBO's HarryPotterreboot has found its main cast, and they seem like the perfect choices for HarryPotter, Hermione Granger, and Ron Weasley. All the news on HBO's streaming 'HarryPotter' TV series, including cast, release date, how to watch, development and the extent of J.K. Rowling's involvement. HarryPotterRebootCast REVEALED! Meet the NEW Harry, Ron and Hermione. . The HarryPotter franchise has many amazing scenes, and with a reboot coming, there are some scenes that don't need to make a comeback.The new series will feature a brand-new cast, but the original cast and crew have also weighed in on the upcoming version. TV rebootcasting updates: Paapa Essiedu is confirmed as Snape; Voldemort’s casting remains unannounced. HarryPotter TV series Season 1 is expected to premiere in 2027 with a star-studded cast. A Cast with Serious Star Power—and Some New Surprises. Janet McTeer isn’t the only star bringing magic to life in the upcoming HarryPotter TV series. HBO’s HarryPotterrebootcast: Everything you need to know.HarryPotter HBO Show Gets First Set Photo, More Cast Revealed. 1 month ago ·. HarryPotterRebootCasting BACKLASH! A 42-Year-Old MAN Tried Out for Hermione?! Clownfish TV.