It was thought a "self-tape" helped Wright get the gig.
Many casting directors and agents now ask actors to tape themselves auditioning, which gives Kiwis seeking work overseas access to top directors.
Wright will play a character named Claire. Australian actress Sophie Lowe plays her daughter, Lena, and Mark Pellegrino, who portrayed Jacob in Lost, will play estranged husband Jack. Wright was not available for comment but friends told the Herald on Sunday she was in high spirits and they were excited about her new role.
Wright was born in Zambia to Kiwi parents and moved to New Zealand as a child.
Before playing Catherine in Nothing Trivial, Wright featured in local TV productions including Seven Periods with Mr Gormsby and Shortland Street.