[6] Her father had been born Arthur Stern-Gwiazdowski in Poland to a mother of French descent and was the adopted son of Rudolf Walther von Monbary.

She appeared as an extra in Tragedy of Love (1923), which starred Mia May, Emil Jannings, and a young Marlene Dietrich, as well as played an uncredited role in Joyless Street (1925), directed by G.W.

von Walther's first major success was Mountain of Destiny (1924), which she acted in alongside Hannes Schneider, Frida Richard, and Erna Morena.

von Walther successfully made the transition to talkies, and continued to appear in films in the early 1930s, among them Fritz Lang's M, in which she played as a prostitute.

During World War II, von Walther participated in troop support tours throughout France, the Netherlands, and Russia.