Lily Tomlin

Actress & Comedian; Star of Netflix's "Grace and Frankie"

Stewart Baker

First Assistant Secretary for Policy at the United States Department of Homeland Security Under the Presidency of George W. Bush

David Cutler

Harvard Professor of Applied Economics & Author

Gary Langer

Former Director of Polling, ABC News

Ann Wright

Activist; Former United States Army Colonel; Retired U.S. State Department Official

Jim Nuttle

Graphic Recording Artist

Ashley Michelle Berry

Anti-Bullying Advocate, Actress, TV & Radio Host

Ali Carr-Chellman

Former Teacher; Now An Instructional Designer and Author on Effective Instruction on Learning

Maziar Bahari

Iranian-Canadian Journalist; Documentary Filmmaker

Bruce Vincent

Agriculture Activist and Motivational Speaker

Jonah Lehrer

Neuroscientist, New York Times bestselling author of "Imagine: How Creativity Works"

Ainsley Rose

Author, Consultant, Former Director of Education for the Western Quebec School Board

Yul Kwon

Television Host, Management Consultant; VP & General Manager of Local Search at Google; 2006 Winner of 'Survivor: Cook Islands'

Dr. Mike Magee

President of Positive Medicine, Inc., Health Journalist & Author

Evgeny Morozov

Internet Scientist

Mary Ehrenworth

Deputy Director of Teachers College Reading and Writing Project

Edwin Schlossberg

President & Principal Designer, ESI Design

Gustavo Arellano

Features Writer for the Los Angeles Times & Author, "Taco USA"; Former Syndicated Columnist, "Ask the Mexican!"

Andrew Revkin

Senior Fellow for Environmental Understanding at Pace University

Nicholas Lardy

Expert in Chinese Economy

Nicholas Lardy: The End of Economic Reform in China?