Michael Fassbender as Thomas Rongen

Oscar Kightley as Tavita

Kaimana as Jaiyah

David Fane as Ace

Rachel House as Ruth

Beulah Koale as Daru

Taika Waititi as American Samoan Priest

Will Arnett as Alex Magnussen

Elisabeth Moss as Gail

Uli Latukefu as Nicky Salapu

Sisa Grey as Convenient Store Cashier

Semu Filipo as Rambo

Chris Alosio as Jonah

Lehi Makisi Falepapalangi as Pisa

Ioane Goodhue as Smiley

Hio Pelesasa as Samson

Wil Kahele as "Who's on the Plane" Reporter

Rhys Darby as Rhys Marlin

Luke Hemsworth as Keith

Angus Sampson as Angus Bendleton

Kaitlyn Dever as Nicole (voice)

Levy Tuiala as Chief Sila

James Burghardt as Tongan Player #1

Patrick Mullen as Tongan Player #2

Jonathan J.I. Knox as Game Referee

Loretta Ables Sayre as Rambo's Mom

Don Nahaku as Tongan Coach

Lori Pelenise Tuisano as American Samoan Woman #1

Tulalagalaga Tatalo Wily as American Samoan Woman #2

Armani Makaiwa as Armani

William Chun as Store Local

Roland Tupola as Tongan Player #3

David Tu'itupou as Tall David

Martin Tyler as Commentator

Russell Satele as Russell Satele (uncredited)