Who is the main person int the boy and the striped pajamas?

The main character in "The Boy in the Striped Pajamas" is Bruno, an eight-year-old boy whose family moves from Berlin to a house near a concentration camp during World War II. Bruno is curious and innocent, struggling to understand the strict rules and the mysterious area surrounding his new home. His friendship with Shmuel, a Jewish boy imprisoned in the camp, highlights themes of innocence, friendship, and the harsh realities of war.