- Chris Albert
- communications
- Alysia Anderson
- production legal: Ventureland, LLC
- Tongsuk Apiruksub
- additional crew
- Pedro Balordi
- archival material
- Grace Barcenas
- facilities operations: Company 3
- Alessio Bergamo
- Covid Supervisor / covid supervisor
- Jonathan Berger
- production legal: Harbottle & Lewis
- Nick Bernasconi
- associate principal counsel: legal affairs
- Lisa Birch
- diving service
- Jonathan Blair
- production legal: Simkins, LLP
- Sam Boardman
- diving crew
- Anirut Bootham
- equipment
- Dave Booys
- diving crew
- Joe Bourne
- diving crew
- Josh Bratchley
- archival material
- Amy Brillhart
- archival researcher
- Suratin Chaichoomphu
- archival material (as Surathin Chaichoomphu)
- Santipong Changpuak
- archival material
- Ekapol Chanthawong
- archival material
- Chuthathip Charoensuwan
- archival researcher
- Monica Chronis
- studio manager
- Matthew Conlon
- post production
- Phil Costello
- unit medic
- Sam Cunningham
- archival researcher
- Pramoan Damkrathok
- equipment
- Thammaporn Dharamadhat
- additional crew
- Marja Diaz
- manager: documentary films
- Andrew Duncan
- production legal: Ventureland, LLC
- Jonathan Englander
- production legal: Bamrung Suvicha Apisakdi Law Associates
- Alan Eyres
- senior vice president: programming & development: National Geographic
- Dan Fall
- set assistant
- Pawnpansa Fargrajang
- simultaneous translation
- Martyn Farr
- archival material
- Randle Feagin
- travel assistance
- Terri Foxman
- archival researcher
- Jess Gamble
- diver / diving crew
- Phanjanit Garnploog
- translator
- Ade Gorst
- diving crew (as Adrian Gorst)
- Dave Green
- diving crew
- Paul Grindey
- production legal: Wiggin, LLP
- Waleeporn Gunan
- archival material
- Marney Hallett
- diving service secretary
- Peter Harcourt
- diving crew
- Richard Harris
- archival material
- Jordan Hart
- director of development
- Ellen Heuer
- assistant
- Jamie Hook
- medic
- Tim Horsburgh
- Consultant: National Geographic Documentary Films
- Raimund Huber
- archival material
- Ben Hannon Hubley
- production coordinator
- Direk Iamyaem
- equipment
- Eakapol Jantawong
- archival material
- Peter Jaszi
- fair use counsel
- Chris Jewell
- archival material
- Pimnan Jitjang
- archival material
- Beth John
- production assistant
- Tanawaut Klajit
- equipment
- Sarah Konig
- assistant
- Nuttapon Konkaew
- video operator
- Yuttapong Kumsamut
- archival material
- Wiangchai Kunngamkwandee
- archival material
- Tiffany Leclere
- svp business & legal affairs (as Tiffany K. Leclere)
- Kittikorn Liasirikun
- additional crew
- Vilma Linares
- research manager
- Erin London
- research assistant
- Erin London
- researcher
- Jessica Ludgrove
- production executive
- Steve Marcus
- caterer
- Doug Mark
- production legal: Mark Music Media & Law
- Evelyn Miller
- deputy chief counsel: legal affairs
- Kristin Montalbano
- communications
- Joshua Morris
- archival material (as Josh Morris)
- Thanet Natisri
- archival material
- Gavin Newman
- archival material
- Martha Noel-Paton
- assistant
- Attasanto Nong Wua So
- archival material
- Charlie Olsky
- publicity and marketing
- Jason Ouaknine
- production accountant
- Mikko Paasi
- archival material
- Prasong Paengthorn
- equipment
- Antonello Paone
- archival material
- Misia Pawlowska
- production assistant
- Claudia Phaa Rowe
- translator
- Shannon Phillips
- production assistant
- Panicha Ploysupaphol
- translator
- Marine Pognot
- production coordinator
- Sorapong Prompakdee
- equipment
- Sam Purnell
- diving crew
- Joe Reed
- diving crew
- Ben Reymenants
- archival material
- Connor Roe
- archival material
- Toby Russell
- dive supervisor
- Awika Saengchaisukhonkit
- translator
- Laura Schaffer
- post assistant
- Lauren Schwartz
- publicity and marketing
- Dave Shaw
- diving supervisor
- Elizabeth Simard
- Assistant: P.J. van Sandwijk
- Tanakarn Simprasan
- video operator
- Pongnarin Sriganha
- archival material
- Rick Stanton
- archival material
- Roxanne Stokes
- production staff
- Jittinant Sunarak
- production legal: Bamrung Suvicha Apisakdi Law Associates
- Aleksandra Szczesna
- production assistant
- Piraporn Taechasawaddinan
- production coordinator
- Dede Taechasawadinan
- production coordinator
- Pongsakorn Tansuwan
- archival material
- Ian Taylor
- medic
- Piboon Thongtanyong
- translator
- Boonyuen Ubonwee
- equipment
- Nick Vargassoff
- diving crew
- John Volanthen
- archival material
- Theresa Waring
- production accountant
- Jim Warny
- archival material
- Ryan Werner
- publicity and marketing
- Nancy Willen
- publicity and marketing
- Hugo Williams-Ellis
- researcher to Kevin Macdonald
- Fred Woodcock
- diving supervisor
- Tan Xiao-Long
- archival material
- Emily Yue
- post assistant