Born in Rostock, Hoppe became a leading lady of stage and films in Germany. She was born into a wealthy landowning family and was initially privately educated on her father's private estate. Later she attended school in Berlin and in Weimar, where she began to attend theatre.[1]

Hoppe first performed at 17 as a member of Berlin's Deutsches Theater under director Max Reinhardt. In 1935 she was hired by the controversial German actor and Director of the Prussian State Theatre under the Third Reich, Gustav Gründgens. They were married from 1936-46, until their divorce. Speaking years after the marriage had ended Hoppe stated, "He was my love, but never my great love, that was work."[1]