Hansel represents he archetype of the hero in this story. He is the character that learns about the stepmother plot and he finds a solution that will eventually save him and Gretel.
Hansel comes up with the idea of leaving the peebles to mark their way home, shining like silver pieces when the moon rose.
Scout characterizes Boo as a petty criminal and a "malevolent phantom." Jem describes his neighbor as a monstrous figure, six-and-a-half feet tall with bloodstained hands. Dill must imagine Boo based on the descriptions his friends provide him.
I would say an unreliable narrator because that kind of narrator is the best at keeping secrets from the reader. If that's not an option, then a restricted narrator because they only know a limited amount of information.