Born in Berlin as Hildegard Erika Charlotte Granass, 'Gardy' was schooled in the art of ballet from the age of six under the tutelage of internationally renowned dancer and choreographer
Tatjana Gsovsky. At sixteen, she took to the stage. Three years later, having taken private acting lessons from
Herma Clement in Berlin, she made her film debut in the circus drama
Tromba (1949) (footnote: star
René Deltgen, the picture's titular evil animal trainer/hypnotist, was attacked by a tiger during the final scene and had to be hospitalized). During the 50s, Gardy became popular for her charming ingénues and romantic leads in escapist comedies and Heimatfilms: with
Fita Benkhoff in the screwball farce
Kein Engel ist so rein (1950) and the twee rom-com
Drei Mädels vom Rhein (1955); as
O.W. Fischer's old flame in the love story
Heidelberger Romanze (1951) (for this performance, Gardy shared a German Film Prize in 1952 as Most Promising Newcomer); with
Karlheinz Böhm in
Hochzeit auf Reisen (1953) and as
Hardy Krüger's love interest in the
Karl Anton-directed
Die Christel von der Post (1956).
With audience interest in the Heimatfilm genre waning, Grady segued into character roles on television. She played a police inspector's wife in the hugely successful
Francis Durbridge-inspired thriller
Das Halstuch (1962) and later co-starred as a pharmacist, romantically involved with a country doctor (
Rudolf Prack) in the popular drama series
Landarzt Dr. Brock (1967). She also featured in all eight episodes of the family series
Großer Mann was nun? (1967), starring
Gustav Knuth.
Gardy Granass has been a German dubbing voice in films for
Estelle Parsons,
Valerie Hobson,
Diane Baker and
Irene Tsu. She was married to
Werner Hess, a writer and former director of broadcasting.