GrowthBusters Online

Saleem Ali - Self (professor of environmental studies), Kelly Baker - Extra, Albert Bartlett - Self (professor emeritus of physics) (as Bartlett) , George Carlin - Self (archive footage) , John Cruickshank - Self (Sierra Club), Brian Czech - Self (CASSE), Herman Daly - Self (ecological economist), Maxine Dunn - Narrator, Veronica Egan - Self (Great Old Broads for Wilderness), Paul Ehrlich - Self (biologist), Robert Engelman - Self (Worldwatch Institute), Eben Fodor - Self (community planning consultant), Dave Gardner - Narrator, Jack Hart - Self (The Oregonian), Trathen Heckman - Self (Transition U.S.)