In the wizarding world of Harry Potter, a half-blood is someone whose either parent is a muggle-born (non-magical) or a half-blood themselves.

It's important to remember the ongoing controversial statements by the creator of the Harry Potter franchise. CBR supports the hard work of industry professionals on properties fans know and love and ...

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During Harry Potter's sixth year at Hogwarts, he finds a book that once belonged to the mysterious Half-Blood Prince that earns him the respect of his new Potions professor Horace Slughorn.

Ritter played a minor character and former student of Professor Horace Slughorn in Harry Potter and the Half-Blood Prince. He died of a brain tumor in 2021 at age 54. Image via Warner Bros.