What do the following characters have in common? albus dumbledore, the headmaster of hogwarts, a school for wizards in harry potter, who is dedicated to fighting lord voldermort, an evil wizard. annemarie johansen, the brave protagonist in the book, number the stars, who learns to be brave in spite of her fears of living during wartimes. brian robeson, a character in the book, hatchet, who survives alone in the wilderness. percy jackson, a book in the book, the lightning thief, who discovers he is a demigod and uses his powers to fight evil. they are all protagonists they are all antagonists they are all inspirational they are all real-life people.