The 11th Hour— Full Cast

Leonardo DiCaprio

as Self - Narrator (voice)

JR Bourne

as Lance Resnick

Kenny Ausubel

as Self

Tom Sizemore

as Katzenberg

Sylvia Earle

as Self

Chris Potter

as Dan Abrams

John Trudell

as Self

Nicola Stephenson

as Sara Hughes

Wangari Maathai

as Self

Nicolas Wright

as Ralf DeWitt

Oren R. Lyons

as Self

Cas Anvar

as Munish Loomba

Jana Carpenter

as Holly Zabrieski

David Suzuki

as Self

Stephen Hawking

as Self

Janine Benyus

as Self

Gloria Flora

as Self

Michel Gelobter

as Self

Mikhail Gorbachev

as Self