Who are the characters in Daniel Half Human and how do they look like?

In "Daniel Half Human" by David Chotjewitz, the main character, Daniel, is a Jewish boy grappling with his identity during the rise of the Nazi regime in Germany. His friend, Armin, is a non-Jewish boy who struggles with loyalty and societal pressures. Daniel is described as having dark hair and a sensitive demeanor, while Armin is portrayed as more robust and confident. Other characters include Daniel's family members and peers, each reflecting the diverse responses to the growing anti-Semitism around them.