Pavel is a old Jewish prisoner at Out-With who is forced to peel vegetables and serve Bruno’s family dinner. Later in the story he tells Bruno that he used to be a doctor as he treats Bruno’s knee.
Gretel is Bruno’s older sister. Bruno always referred to her as a “Hopeless Case” and calls Gretel this because in his mind Gretel never does anything but cause him grief.
Lieutenant Kurt Kotler is a soldier of Bruno’s father who works at the “Out-With” camp. Throughout the book, Lieutenant is displayed as a aggressive person because of how he treats the jews at the camp and because of his attitude shown while he was at the house. When Bruno needed a tire for his swing he asked the Lieutenant as that was his only real choice. Lieutenant then called Pavel to get a tire and called him something unkind.There was another time when Pavel spills wine on the Lieutenant’s lap so he resolved it by saying some very offending words.
Natalie is Bruno’s grandmother. She used to be a touring singer and featured Bruno and Gretel in the special plays she wrote for particular occasions. However, she dislikes her son’s work and soon dies later in the story where a funeral is thereupon held for her.
Matthias is Bruno’s grandfather. Unlike his wife, he feels proud of what Bruno’s father does in the Nazi party. He met his wife, Natalie, during a concert of hers.
Herr Liszt is Bruno’s and Gretel’s tutor. He is known as a strict and rigorous teach who deeply encourages the study of history and geography because he believes that those are the only two subjects that are worth studying.