New Zealander to appear in new season of Downton Abbey... but playing an Australian

Downton Abbey, the world's favorite country-house soap, is getting a dose of opera.
Producers say soprano Kiri Te Kanawa will appear in the upcoming fourth season as real-life diva Nellie Melba.
The New Zealand-born singer said "I couldn't say yes fast enough" to appearing in a show she loves - and enjoyed her time on set so much she named her new dog Abbey.
Te Kanawa sang for journalists in London at a preview of the new season on Tuesday (local time). In the new series, Melba - a huge star of the early 20th century - joins the aristocratic Grantham clan for a house party.

but as an

 AUSTRALIAN?????