Harry The Beautiful
The current "discussion" among my Harry Potter For Grownups enthusiasts is that J.K. Rowling has created a World War II analogy in the Harry Potter series.
Everyone is hot to trot for the Voldemort=Hitler analogy. They are both half-breeds who advocate pure blood and they are both crazy murdering sumbeeches. They've further decided that Cornelius Fudge=Neville Chamberlain and Albus Dumbledore=Winston Churchill.
Being a devout Churchillian, I won't go into the scores of points on where the analogy falls down except to say that Chamberlain actually advocated peace with the Germans. Fudge, in all of his stumbumblery never did that.
Following their proposed analogy through to its definite conclusion, I would say that Harry has to be America. The anointed young upstart who survived mostly unscathed after the first battle (WWI).
If Harry is America, the scar is probably Gary, Indiana.