On one website it says
"The current cast in Australia are: Rebecca Cartwright (as Hayley Lawson); Jason Smith (as Robbie Hunter); Isabel Lucas (as Tasha Andrews); Kip Gamblin (as Scott Hunter); Chris Hemsworth (as Kim Hyde); Kate Ritchie (as Sally Fletcher); Ivor Kants (as Barry Hyde); Ben Unwin (as Jesse McGregor); Ada Nicodemou (as Leah Patterson); Lynne McGranger (as Irene Roberts); Joel McIlroy (as Flynn Saunders); Lyn Collingwood (as Colleen Smart); Ray Meagher (as Alf Stewart); Clarissa House (as Beth Hunter); Tim Campbell (as Dan Baker); Indiana Evans (as Matilda Hunter); Sharni Vinson (as Cassie Turner); Jodi Gordon (as Martha McKenzie); Mark Furze (as Ric Dalby)."
So that means that Cassie Turner and Martha McKenzie are new