Which actress used the name Edda van Heemstra during World War II?

Audrey Hepburn (born Audrey Kathleen Ruston; 4 May 1929 – 20 January 1993) was a British actress, model, dancer and humanitarian. Recognized as a film and fashion icon, Hepburn was active during Hollywood's Golden Age. She was ranked by the American Film Institute as the third-greatest female screen legend in Golden Age Hollywood and was inducted into the International Best Dressed List Hall of Fame.

After Britain declared war on Germany in September 1939, Hepburn's mother relocated her daughter back to Arnhem in the hope that, as during World War I, the Netherlands would remain neutral and be spared a German attack. While there, Hepburn attended the Arnhem Conservatory from 1939 to 1945. She had begun taking ballet lessons during her last years at boarding school, and continued training in Arnhem under the tutelage of Winja Marova, becoming her "star pupil". After the Germans invaded the Netherlands in 1940, Hepburn used the name Edda van Heemstra, because an "English-sounding" name was considered dangerous during the German occupation. Her family was profoundly affected by the occupation, with Hepburn later stating that "had we known that we were going to be occupied for five years, we might have all shot ourselves. We thought it might be over next week ... six months ... next year ... that's how we got through".