The stunning 45-year-old, who is still in the US and couldnโt attend last nightโs ceremony at the Capitol Theatre, won the prize for her role in the Sydney Theatre Companyโs The Maids.
Her husband Andrew Upton told the Daily Telegraph on the red carpet at the Helpmann Awards that her work was โamazingโ.
โIโm so proud of her,โ he said.
The King and I won the coveted best musical, while Robyn Nevin won the Helpmann Award for best female actor in a supporting role in a play for her performance in Angels In America.