Esraa Bani
饰 Herself (Population Action International)
Albert Bartlett
饰 Himself - Host
Lester Brown
饰 Himself (Earth Policy Institute)
Martha Campbell
饰 Herself (Venture Strategies)
Susan Davis
饰 Herself (BRAC)
Brian Dixon
饰 Himself (Population Connection)
Paul R. Ehrlich
饰 Himself - Host
Riane Eisler
饰 Herself (Center for Partnership Studies)
Katie Elmore Mota
饰 Herself (Population Media Center)
John Feeney
饰 Himself (Environmental writer)
Malcolm Potts
饰 Himself (University of California at Berkeley)
William N. Ryerson
饰 Himself (Population Media Center)
Peter Sawtell
饰 Himself (Eco-Justice Ministries)
Laura S. Scott
饰 Herself (author of Two Is Enough)
Negussie Teffera
饰 Himself (Population Media Center)
Mathis Wackernagel
饰 Himself (Global Footprint Network)
Lyuba Zarsky
饰 Herself (Monterey Institute of International Studies)
Robert Walker
饰 Himself (Population Institute)
