"Oh, it's you, is it? I suppose you've been doing something dangerous again?"
     -- Poppy Pomfrey to Harry Potter

"Listen to me, Harry. You happen to have many qualities Salazar Slytherin prized in his hand- picked students. His own very rare gift, Parseltongue -- resourcefulness -- determination -- a certain disregard for rules. Yet the Sorting Hat placed you in Gryffindor. You know why that was. Think...It is our choices, Harry, that show what we truly are, far more than our abilities." 
     -- Albus Dumbledore

Biographical facts:
Born July 31, 1980, to James Potter and Lily Evans Potter (SS8)
Hogwarts: Sept 1, 1991 - present, Gryffindor House
Quidditch: Seeker for Gryffindor House team 1991 - present (youngest player for a house team in a hundred years)
eyes: brilliant green, "He has his mother's eyes." Wears round glasses
hair: black, untidy, sticks up in the back, same as his father's
build: short and thin, knobbly knees
distinguishing features: lightning-bolt scar on forehead
field: becoming quite strong in Defence Against the Dark Arts
unusual abilities: speaks Parseltongue, prescient dreams
middle name: James, after his father (Sch2)
house: Gryffindor
wand: holly and phoenix feather, eleven inches, nice and supple (SS5)
broomstick: Nimbus 2000 (1991-3), Firebolt (1994 -

Lexicon References:
Harry's Dreams
timeline: Harry Potter
the Potter family
Why did Harry do that?
Hedwig
Pureblood, Half-blood, or "Mudblood"?
Harry Potter: The Truest Gryffindor of All?