A Ravenclaw girl in Ginny Weasley's year. She is described as having straggly, waist-length dirty blonde hair and protuberant eyes, which give her a permanently surprised look. She takes the term "independent thinker" to the extreme and is a bit of a loner, due to her unusual beliefs (i.e. Cornelius Fudge is trying to take over Gringotts Wizard Bank by having goblins cooked in pies). She is often the butt of mean jokes and teasing from her peers. It appears that her views come from her father, who edits the alternative magazine The Quibbler, which "publishes important stories he thinks the public needs to know".
Luna strays from the crowd in her appearance, too, although this doesn't seem to be a conscious thing, (meaning she hasn't decided to dress goth, for example, to express her difference from other people) and takes pleasure in wearing orange radish earrings and a necklace made from Butterbeer corks.
Despite her odd appearance and out-to-lunch views, Luna is very caring and loyal. Although not initially liked by Harry and his crew, she is accepted as a friend by the end of Book Five, after helping out in the Department of Mysteries.
Person 1: I just saw a squashed tomato that looked like a duck.
Person 2: Hey, snap out of it. Why are you being so luna lovegood today?