Dominic Ona-Ariki
as Ariki Davis
Joel Tobeck
as Stephen Tremaine
Alison Bruce
as Lois Tremaine
Aidee Walker
as Kate Ryder
Nathalie Morris
as Emma Ryder
Sara Wiseman
as Jackie Ryder
Jared Turner
as Rob Ryder
Peter McCauley
as Jack Ryder
Michelle Langstone
as Charlotte McCrae
Phil Brown
as Mark 'Haggis' McCrae
Phoebe McKellar
as Tilly Gardiner
Alexander Walker
as Joe Turner
Dean O'Gorman
as Andrew 'Grub' Ryder
Ryan O'Kane
as Dermot Braithwaite
Toby Sharpe
as Minister of Internal Affairs
Mark Neilson
as Pathologist
Mia Blake
as Dr Ruby Patterson
Rachel Nash
as Minister
Matt Chamberlain
as DI David Preston
Tanya Stone
as Youth Hostel Receptionist
Gemma Weston
as Dead Kayaker
Franziska Maciej
as Annabel Martinez
Alexander Littlewood
as Medic
Fae Robertson
as Maggie
Series 2 additions:
Hester Ullyart
as Rosa Burns
Arlo Green
as Orlando Smythe
Jim Moriarty
as Maaka Richardson
Susan Brady
as Hannah Turner
Evotia-Rose Araiti
as Kimiora Davis
Simon Ferry
as Jason Bennett
Peter Burger
as Therapist
(series' director)
Series 3 additions:
Nicola Kāwana
as Pounamu Edwards
Jonno Roberts
as Noel Kennard
Kieran Charnock
as Caleb Kennard
Roxie Mohenni
as Frankie Azad
Brit O'Rourke
as Ava Cannington
Jen Van Epps
as Harper King
Peter Hambleton
as Darren Gibson
Beth Alexander
as Lola Marshall
Wesley Dowdell
as Trent Jarvis
Michael Rewi
as Piripi Williams
Greta Gregory
as Renee Braithwaite