Paapa Essiedu

United Kingdom authorities are aware of death threats to a Black star of the upcoming HBO 'Harry Potter' series ... and they've been in contact with the production, TMZ has learned. The Hertfordshire Constabulary -- which polices the area where the series is filming -- tells TMZ ... a police…

Paapa Essiedu says he's gotten an onslaught of racially charged death threats since getting cast as Snape in the upcoming 'Harry Potter' series. He recalled to The Times of London, "I’ve been told, 'Quit or I’ll murder you.'" He added ... "The reality is that if I look at Instagram I will see…