Credit: Mary Evans/Courtesy Everett Collection

J.K. Rowling shared a birthday message Saturday for Severus Snape on Twitter, recognizing the Harry Potter character in a way that both his supporters and critics should be able to appreciate.

“Been wondering how to mark Snape’s birthday without starting an argument. Here’s to him, the big hero/bully. He really was the best/worst,” the author tweeted.

Rowling set off a debate of sorts this past fall after she explained why Harry named one of his sons after his former Potions teacher.

“Snape died for Harry out of love for Lily [Harry’s mother]. Harry paid him tribute in forgiveness and gratitude,” she wrote at the time.

Rowling added, “Snape is all grey. You can’t make him a saint: he was vindictive & bullying. You can’t make him a devil: he died to save the wizarding world … In honoring Snape, Harry hoped in his heart that he too would be forgiven. The deaths at the Battle of Hogwarts would haunt Harry forever.”

Hero or bully, best or worst, his birthday is still Jan. 9. Something tells us Potter fans will be celebrating it…always.