Dr. Alexander Biberstein is the official doctor of the and the brother of Judenrat president . He helps get out of the by diagnosing him with a bad back and showing him how to fake the injury. Despite some interference with ’s from , Biberstein is ultimately one of those rescued by Schindler. He helps Schindler prevent a typhus outbreak at , and after the World War II, he attests to how Oskar and helped save many lives.