National Geographic Explorer

• 
  Lisa Ling
  Self
• 
• 
  Gerald Durrell
  Self
• 
  Lee Durrell
  Self - Gerald's Widow
• 
  Robert Ballard
  Self
• 
  Keith David
  Self
• 
  Robert Urich
  Host
• 
  Rodd Houston
  Self - Narrator
• 
• 
  Michael Fay
  Self / Expedition Leader
• 
  Richard Kiley
  Self - Narrator
• 
  Patrick Edlinger
  Self
• 
  Tom Chapin
  Self
• 
  Leo Dickinson
  Self
• 
  Peter Bergen
  Self - Correspondent
• 
  Mireya Mayor
  Self
• 
  Adam Ravetch
  Self
• 
  Stephen M. Kajiura
  Self - Florida Atlantic University
• 
  Hayati Akbas
  Captain
• 
• 
  Juan Eloy Carrera
  Office Worker
• 
  Lorrie Smith
  White House Staffer
• 
  Richard Müller
  Self
• 
  Candida R. Moss
  Self
• 
  Francesca Fiorentini
  Self
• 
  Irving Johnson
  Self
• 
  Betsy Ames
  Self - Narrator
• 
  George Bush
  Self (archive footage)
• 
  Boyd Matson
  Self - Host
• 
  Jonathan Bryce
  Self - Narrator

• Peter McHugh
• Oliver Muirhead

• Peter Yost
• Eitan Weinreich
• Tony Gerber
• Mark Mannucci
• Philip Day
• Anna Fitch
• Pamela Caragol
• Peter Schnall
• Robert H. Gardner
• Leslie Schwerin
• Ron Bowman
• Bonni Cohen
• Noel Dockstader
• Max Salomon
• Geoffrey Luck
• Bob Landis
• David Meyer
• Nick Stringer
• Peter Getzels
• Jeff Morales
• David Shadrack Smith
• Tom Jennings
• Gareth Harvey
• Ray Telles
• John Rubin
• Jeanine Isabel Butler
• Dave Linstrom
• J.J. Kelley
• William Canning
• Bruno Cusa

• Anna Auster
  ...
  (writer)
• James Barrat
  ...
  (writer)
• Toby Beach
• Jennifer Beman
• Peter Bergen
  ...
  (based on the book by)
• Jaime Bernanke
  ...
  (writer)
• Tucker Bowen
• Ron Bowman
  ...
  (writer)
• Simon Boyce
  ...
  (writer)
• John B. Bredar
• Brian Breger
• Peter Bricca
  ...
  (writer)
• Scott Bronstein
  ...
  (writer)
• Jeanine Isabel Butler
  ...
  (writer: Wilma TV Inc.)
• Pamela Caragol
• Ann Carroll
  ...
  (writer)
• Bonni Cohen
  ...
  (writer)
• Kate Culpepper
  ...
  (additional writer)
• Gavan Daws
• Philip Day
  ...
  (writer)
• Ian Denyer
• Timothy Dilworth
• Noel Dockstader
  ...
  (writer)
• Michael Dolan
  ...
  (writer)
• Nancy Donnelly
  ...
  (writer)
• Lynn Dougherty
• Elli Dutcher
  ...
  (writer)
• David Guy Elisco
  ...
  (writer)
• Ed Fields
  ...
  (writer)
• Micah Fink
  ...
  (writer)

• Salvatore Vecchio
• Peter Coyote
• Martin Sheen
• Tim Hopper
• John Flynn
• Phil Crowley
• Richard Attenborough
• Robert Hughes
• Bingo O'Malley
• Robyn Williams
• Paul Sorvino
• John de Lancie
• Dave Fennoy
• Ron David
• J.V. Martin
• Rod Houston
• Tom Selleck
• Tim Matheson
• Mark Mannucci
• Mike New
• Pamela Caragol
• Denny Heide