Attended acting classes at the Ilka-Grüning-Schule in Berlin.
Daughter of Karen Horney, a German psychoanalyst, and Oscar Horney, an industrial from Berlin.
Is interred in the cemetery of Weilheim-Wilzhofen.
Moved to the United States after her mother`s death to open the Karen Horney clinic in New York City, in honor of her achievements, and finally became US citizen (1953).
One of the great German actresses, she received an Honorary Bambi award in 1965 for her impressive career and her performances that have "graced the screen".
Was a left hander.