1) Outward appearanceThroughout the series, Harry is described as having his father's perpetually untidy black hair, his mother's bright green eyes, and a lightning bolt-shaped scar on his forehead. He is further described as "small and skinny for his age" with "a thin face" and "knobbly knees", and he wears round eyeglasses. In the first book, his scar is described as "the only thing Harry liked about his own appearance". When asked about the meaning behind Harry's lightning bolt scar, Rowling said, "I wanted him to be physically marked by what he has been through. It was an outward expression of what he has been through inside... It is almost like being the chosen one or the cursed one, in a sense." Rowling has also stated that Harry inherited his parents' good looks.In the later part of the series Harry grows taller, and by the seventh book is said to be 'almost' the height of his father, and 'tall' by other characters.Rowling explained that Harry's image came to her when she first thought up Harry Potter, seeing him as a "scrawny, black-haired, bespectacled boy". She also mentioned that she thinks Harry's glasses are the clue to his vulnerability.
2) According to Rowling, Harry is strongly guided by his own conscience, and has a keen feeling of what is right and wrong. Having "very limited access to truly caring adults", Rowling said, Harry "is forced to make his own decisions from an early age on. He "does make mistakes", she conceded, but in the end, he does what his conscience tells him to do. According to Rowling, one of Harry's pivotal scenes came in the fourth book when he protects his dead schoolmate Cedric Diggory's body from Voldemort, because it shows he is brave and selfless.Rowling has stated that Harry's character flaws include anger and impulsiveness; however, Harry is also innately honourable."He's not a cruel boy. He's competitive, and he's a fighter. He doesn't just lie down and take abuse. But he does have native integrity, which makes him a hero to me. He's a normal boy but with those qualities most of us really admire."For the most part, Harry shows humility and modesty, often downplaying his achievements; though he uses a litany of his adventures as examples of his maturity early in the fifth book. However, these very same accomplishments are later employed to explain why he should lead Dumbledore's Army, at which point he asserts them as having just been luck, and denies that they make him worthy of authority. After the seventh book, Rowling commented that Harry has the ultimate character strength, which not even Voldemort possesses: the acceptance of the inevitability of death.