Jonah's sister

I found Jonah's sister (Mary?) to be a great character for the small part she played in the show. Chris Lilley made a facebook post about how great the supporting cast was, especially Eigaiwe Hunt who plays Mary.

Has this young woman been in anything else of note? Anyone know anything else about her? I got the impression the supporting cast in this were mostly professional actors rather than just non-actors that were used in other series that Lilley has done.