Who is Banquo?

Banquo is an old Italian man being held in the same prison as Jozef. As the war draws to a close and their captors become more lax with their prisoners, the two men begin to meet daily and talk about their experiences. Banquo is an important character because he encourages Josef to forgive himself for the men he killed in the war, and to "set free" the ghosts of his mother and Zlee, whom he begins to see often while he's in prison. Although Jozef is still a broken man at the war's end, his load is lighter because of his time with Banquo.