大卫·爱登堡

David Attenborough

饰：Himself

查登·亨特

Chadden Hunter

饰：Himself

James Leape

饰：Himself

James Lovelock

饰：Himself

Jeffrey A. McNeely

饰：Himself

Jonathon Porritt

饰：Himself

M. Sanjayan

饰：Himself

Rowan Williams

饰：Himself

艾雷斯泰·法瑟吉尔

Alastair Fothergill

饰：Himself

Peyton Knight

饰：Himself

Nisar Malik

饰：Himself

Henry Ndede

饰：Himself

Craig Packer

饰：Himself

Carlos Quesada

饰：Himself

Sakana Ole Turede

饰：Himself

Simon Poland

Simon Poland

饰：Narrator,3 episodes, 2006, / ...

Huw Cordey

Huw Cordey

饰：Self,3 episodes, 2006,

爱德华·威尔逊

Edward O. Wilson

饰：Self,2 episodes, 2006,

Adam Ravetch

饰：Self,1 episode, 2006,

Martyn Colbeck

Martyn Colbeck

饰：Self,1 episode, 2006,

Clare Short

Clare Short

饰：Self,1 episode, 2006,

Russell A. Mittermeier

饰：Self,1 episode, 2006,

罗杰·S·佩恩

Roger Payne

饰：Self,3 episodes, 2006,

万加丽·马萨伊

Wangari Maathai

饰：Self,3 episodes, 2006,

马克·林菲尔德

Mark Linfield

饰：Self,2 episodes, 2006,

Richard Mabey

饰：Self,1 episode, 2006,

马克·布朗罗

Mark Brownlow

饰：Self,1 episode, 2006,

Sandra Postel

饰：Self,1 episode, 2006,