Are the actresses on H2O just add water British?

The main actresses on H2O: Just Add Water are Australian.

Here are the actresses who played the main roles:

* Claire Holt (Rikki Chadwick)

* Cariba Heine (Rikki Chadwick)

* Phoebe Tonkin ( Cleo Sertori)

* Indiana Evans (Emma Gilbert)

While they may have some British accents in the show due to the character's personalities or to fit the tone of the story, they are all Australian actresses.