Roald Dahl himself.
Cruella de Ville.
Mind to Murder.
A taste for death.
The Bronte sisters.
They all wrote books where wizards played an important role.
They all identify themselves by their initials, and not their full names.
They all had orphaned children as characters in their books.
They all lived and worked in the 19th Century.
The Great Blue Yonder by Alex Shearer.
Foul Play, by Mal Peet.
I Am Not a Serial Killer, by Dan Wells.
The Tales of Beedle the Bard, by J.K. Rowling.