Art by Fox Estacado In the French translations of Harry Potter, the character we know as Professor Snape is named “Rogue,” emphasizing his unpredictable, untrustworthy nature.  The Snape of our imaginations wears many faces:   the gnarled grimace that J.K. Rowling sketched; the bearded, pointy-featured Mary GrandPré wizard from the U.S. editions; the mournful Potter Puppet Pal Snape;