Acting · b. 1978 · New Zealand Amber Sainsbury Biography Amber Sainsbury (born 28 August 1978) is a New Zealand actress. Acting The Ferryman Kathy 2007 30 Days of Night Denise 2007 The Purifiers Frances 2005 The Poseidon Adventure Shelby Clarke 2005 Channelling Baby Cassandra 1999 Agent-readable