Trudy Hubermann is the daughter of Rosa Hubermann and Hans Hubermann and a housemaid that took care of children. Trudy is a few inches taller than Rosa, but inherited her waddle. She is not seen as being political like her brother, but not to be trusted with the secrets of the Hubermanns. She has soft lips and a quiet voice.
Little is known about her, apart that she only visited her family on Christmas. In Christmas 1939, when her brother (Hans Hubermann Jr) and her father argued, causing her brother to angrily leave, she watched him going away by Himmel Street through the window. She never saw Hans Jr. ever again.