Edmund Pevensie
In The Lion, the Witch and the Wardrobe, he betrays his siblings to Jadis, the White Witch while under her influence, but as the story goes on he accepts that he has done wrong. In the book, Edmund is described as having ash blonde hair, grey eyes and dimples like his siblings. He is the only one out of brother and sisters to have light hair which as Lewis states represents him being an outsider.