If you are referring to charachters in the book saying "He-Who-Must-Not-Be-Named", then they are talking about Lord Voldemort, the person who murdered Harrys parents. They call him that because they are so terrified of him.
It is "He-Who-Must-Not-Be-Named. At the end of Harry Potter 7, he dies, so no.
He-Who-Must-Not-Be-Named, of course.
There are lots of characters in Harry Potter; you must be more specific.
I think you mean he who must not be named. He who must not be named is Voldemort.
Everybody in the Harry Potter movies must be British unless their character is foreign There are no Americans in Harry Potter so no, Oprah is not in Harry Potter.
Severus Snape He-who-must-not-be-named Seamus Finnigan Harry Potter Hannah Abbott
A nickname for You know who/ he who must not be named/ Voldemort
He comes "back to life" in book 4 (Harry Potter and the Goblet of Fire)
He-who-must-not-be-named, or simply Voldemort, in the 7th book
Harry potter kills Voldemort ( aka "you know who" or the dark lord or He Who Must Not Be Named
Voldomort AKA (also known as) he who must not be named
do you mean he-who-must-not-be-named? if so, its Voldemort.......