Characters played by Sophie Okonedo
Self - Narrator
Characters played by Leigh Joel Scott
Audio Description
Narrator
Characters played by Douglas Vakoch
Self - Astrobiologist
Characters played by Thomas M. Iliffe
Self - Marine Biologist
Characters played by Natalie Batalha
Self - Astrophysicist
Characters played by Robert Hollingworth
Self - Natural History Cameraman
Characters played by Tom Crowther
Self - Ecologist
Characters played by Kennda Lynch
Self - Astrobiologist
Characters played by Didier Queloz
Self - Astrophysicist
Characters played by Michael Foale
Self - Astronaut
Characters played by Donato Giovannelli
Self - Microbiologist
Characters played by Kirsty MacLeod
Self - Ecologist
Characters played by Avalon Owens
Self - Entomologist
Characters played by Anna Dornhaus
Self - Evolutionary Biologist
Characters played by Diana Northup
Self - Microbiologist
Characters played by Mark Charran
Self - Evolutionary Biologist
Characters played by David Reznick
Self - Evolutionary Biologist
Characters played by Alejandro Rico-Guevara
Self - Evolutionary Biologist
Characters played by Adam Frank
Self - Astrophysicist
Characters played by Fiorenzo Graziano
Self - Professional Paraglider
Characters played by Allison Camp
Self - Biologist
Characters played by Stuart Armstrong
Self - Futurologist
Characters played by Palango
Self - Hunter
Characters played by Magdalena Sorger
Self - Entomologist
Characters played by Fernando Calderón Gutiérrez
Self
Characters played by Carlos Santibáñez-López
Self - Evolutionary Biologist
Characters played by Vahe Alaverdian
Self - Master Falconer
Characters played by Phil Metzger
Self - Planetary Physicist