HBO's "Harry Potter" TV series has officially locked in ... Paapa Essiedu as Severus Snape and Nick Frost as Rubeus Hagrid. Those four will all serve as series regulars. Guest/recurring roles ...

who has been cast in the upcoming series as Potions Professor Severus Snape. Last week, Essiedu — along with Fantastic Beasts star Eddie Redmayne and Harry Potter film series actor Katie Leung ...

The author blasted an open letter, signed by Essiedu among other "Harry Potter" actors, which called protection of the U.K.