Take a look at the six adult actors HBO confirmed will be part of the Hogwarts staff in the upcoming TV series.

HBO has confirmed its casting for the Harry Potter series. John Lithgow will play Albus Dumbledore, Janet McTeer is Minerva McGonagall, Paapa Essiedu is Severus Snape, and Nick Frost is Rubeus Hagrid.

HBO officially announced key additions to the Harry Potter TV series, including who will play Dumbledore, McGonagall, Snape, and Hagrid.

All aboard! The Hogwarts Express will be chugging along yet again and bringing viewers to the Wizarding World via HBO's ...