The “Harry Potter” HBO TV series adaptation is rounding out its cast with seven new additions. The following actors have been added to the show’s cast: Katherine Parkinson as Molly Weasley, Lox Pratt as Draco Malfoy and Johnny Flynn as Lucius Malfoy,

HBO's upcoming 'Harry Potter' series aims to 'explore every corner of the wizarding world.' Meet Hogwarts' new Harry, Ron, and Hermione with EW's 'Harry Potter' cast and character guide.

More wizards and witches have joined the upcoming "Harry Potter" HBO series. HBO has announced nine more actors joining the show, including those playing the Malfoy family members and their matriarch, Molly Weasley. Newcomer Lox Pratt will play Draco Malfoy, while "Emma" actor Johnny Flynn has been cast as Lucius Malfoy.