There are ways to run applications that support Chromecast though aren't available in your country, Australia often has this problem.
Yes there are ways to run apps like Netflix, by pretending you are based in America, here though will concentrate on apps that are fully available in Australia.
Free Chromecast Applications that Work in Australia
Stan Movies and TV Streaming
"Watch on your TV, computer, tablet or smartphone"
"Stream Your Favourite TV Shows"
"Selection of shows available first and exclusive along with hundreds of series including complete box sets."
"Heaps of Blockbusters, all time greats, world movies and award winning favourites."
"TV shows and movies for kids of all ages. Parental controls to keep kids safe."
Ten Dollars a month ($10.00)
Unlimited streaming, no ads!
Stan TV & Movies Streaming"Stream Your Favourite TV Shows"
"Selection of shows available first and exclusive along with hundreds of series including complete box sets."
"Heaps of Blockbusters, all time greats, world movies and award winning favourites."
"TV shows and movies for kids of all ages. Parental controls to keep kids safe."
Crackle Movies & TV
Description
Google Play Movies & TV
Description
Google Cast for Chrome Browser
The Google Cast extension enables you to find and play content on your Chromecast device from your Chrome browser.
When on Cast optimized sites like YouTube and Netflix, you'll see new options that let you play video on your TV via Chromecast - using your computer as a remote to browse for videos and to control playback.
Google Play Music
Description
Description
ABC iView is now offering support on Apple and Android devices. Chromecast support on Android and iOS is still in beta stage and we’ll be working through improvements and optimisations to make this experimental service even better. We welcome any suggestions and feedback regarding Chromecast.
There are a s few listed apps for Australia, but in all honesty most are crap, there is no decent DLNA app to cast your local files from, though they do seem to be coming, slowly... Plex is great, but you need to run the Plex server on a PC that can run it, I want something that can run on a Raspberry Pi, so I can leave it on 24/7, instead of having to run my desktop PC!
Of course most apps don't care what country you are in, but some like Netflix do and it sucks!
If you have a Chromecast they occasionally have special offers, check back at this link regularly.
Google Chromecast Offers - click here!