In a traditional fable, characters are usually one-dimensional. How might Bruno and Gretel might be considered one-dimensional.

In fables the characters are usually one dimensional, where they just express one kind of feeling or thought. For example in many fables they often use stereotypes or just one dimensional thoughts, like in “Little Red Riding Hood” the wolf is like the stereotypical evil person who uses tricks and other things to get their way while Red Riding Hood is just the innocent kid who knows of nothing and would just listen to what is being told to her. In this case with “The Boy in The Stripe Pyjamas”, Bruno and Gretel would be considered one-dimensional because, Bruno is just like Little Red Riding Hood, with the whole innocent kid personality, where he knows of nothing and only see things how a little kid would see it. Whereas Gretel have the stereotypical mean, know-it-all, older sister act where she thinks she is good at everything, knows everything and believes that his younger brother is never good enough for her, just like as if he is just a burden.