Viggo Mortensen as Rick Stanton

Colin Farrell as John Volanthen

Joel Edgerton as Harry Harris

Tom Bateman as Chris Jewell

Paul Gleeson as Jason Mallinson

Teeradon Supapunpinyo as Coach Ek

Girati Sugiyama as Lek

Pasakorn Hoyhon as Chai

Tanatat Srita as Arm

Kaokuson Sorapap as Aat

Nophand Boonyai as Thanet Natisri

Sukniran Sukcharoen as Poom

Ensai O'Haire as Decha

Thanthapthai Chanin as Dew

Achi Jinapanyo as Prem

Thanaphat Thopiata as Wit

Phitakphong Boonnet as Rit

Joe Chuensawan as Tul

Nawanut Kaeomueangsi as Nop

Thitiphat Bheganan as Don

Neungruthai Bungngern-Wynne as Noi

Teerawat Mulvilai as Somboon

Pattrakorn Tungsupakul as Buahom

Sahajak Boonthanakit as Governor Narongsak Osatanakorn

Shakriya Tarinyawat as Manop

Mayuree Ruanpom as Wanna

Theerapat Sajakul as Captain Arnont

Sukollawat Kanarot as Saman Kunan

Thira Chutikul as Commander Kiet

Blake McFarlane as Matthew

Helen Cassidy as Annabel

Terdphong U-Kham as Park Ranger Kittipong Saisor

Vithaya Pansringarm as General Anuphond

Lewis Fitz-Gerald as Vernon Unsworth

Josh Helman as Major Hodges

Zahra Newman as Captain Olivia Taft

Peter Knight as Police Captain Bas

Chatchawan Kamonsakpitak as Village Headman

Thinatya Popanum as Kanda

Popetorn Soonthornyanakij as Dr. Karn

Natvara Hongsuwan as Preeya

Jonathan Fang as Jay

Bernard Sam as Pichai

Gerwin Widjaja as Udom

Kevin Spink as Josh Bratchley

Christopher Story as Connor Roe

Watcharaphong Korayutpiphat as Dusit

Wirot Nilphongamphai as Navy Seal

U Gambira as Kruba Boonchum

Waraporn Khamsingha as Kampang

Pratuang Boontang as Yod

Nitipoom Khachatphai as Student

Thatpong Hiruntanakitjakul as Minister's Aide

Sam Arnold as Richard (uncredited)

Nick Lawler as Navy Seal Officer (uncredited)

Luisa Prosser as Reporter #1

Artin John as Reporter #2

Sen Shao as Reporter #3

Paula Garcia as Reporter #4

Jane Bychkova as Reporter #5

Vincent B. Gorce as Reporter #6

Rapeeporn Sophonthammakij as Reporter #7

Suphajon Klinsuwan as Reporter #8