Martha has been active in drama since her early schooldays .
It was as a 10 - year - old that Martha had Martha 's professional debut in the Australian production of Joseph and the Amazing Technicolor Dreamcoat at the Victorian State Theatre .
Martha has been active in drama since her early schooldays but it was as a 10 - year - old that she had her professional debut in the Australian production of Joseph and the Amazing Technicolor Dreamcoat at the Victorian State Theatre .