达丽尔·汉纳

Daryl Hannah

饰：Herself

安妮·伦纳德

Annie Leonard

饰：Herself

Madison Vorva

饰：Self,1 episode, 2013,

Kyle Thiermann

饰：Self,1 episode, 2013,

小艾德·博格里

Ed Begley Jr.

饰：Self,1 episode, 2004,

爱德华·阿斯纳

Edward Asner

饰：Self,1 episode, 2004,

皮特·西格

Pete Seeger

饰：Self,1 episode, 2004,

罗伯特·雷德福

Robert Redford

饰：Self,1 episode, 2006,

大卫·铃木

David Suzuki

饰：Self,1 episode, 2006,

琼·贝兹

Joan Baez

饰：Self,1 episode, 2007,

琳达·亨特

Linda Hunt

饰：Narrator,1 episode, 2009,

Bernard Krause

饰：Self,1 episode, 2016,

迈克尔·波伦

Michael Pollan

饰：Self,2 episodes, 2009-2016, / ...

彼德·考约特

Peter Coyote

饰：Narrator,2 episodes, 2013-2016, / ...

Junior Walk

饰：Self,1 episode, 2013,

马丁·辛

Martin Sheen

饰：Self,1 episode, 2004,

阿洛·古瑟瑞

Arlo Guthrie

饰：Self,1 episode, 2004,

迈克尔·史帝普

Michael Stipe

饰：Self,1 episode, 2006,

Julia Hill

饰：Self,1 episode, 2006,

Dave Foreman

饰：Self,1 episode, 2007,

艾丽丝·沃特斯

Alice Waters

饰：Self,1 episode, 2009,

Martin Litton

饰：Self,1 episode, 2009,

坦普尔•葛兰汀 Temple Grandin

Temple Grandin

饰：Self,1 episode, 2011,

Gregg Treinish

饰：Self,1 episode, 2013,

Gunther Hauk

饰：Self - Interviewee,1 episode, 2016,