David Suzuki

Environmentalist & Scientist; Co-Founder of the David Suzuki Foundation

Craig Newmark

Founder of Craigslist; Internet Entrepreneur; Leader in Social Networks

Juan Williams

New York Times Best-Selling Author, Fox News Political Analyst, Co-Host of "The Five" & Award-Winning Columnist

Sallie Krawcheck

Founder & CEO of Ellevest; Author of "Own It: The Power of Women at Work"

Tim O'Reilly

Founder & CEO of O'Reilly Media

Jeffrey Garten

Professor, Yale School of Management and Expert on Global Business Strategy

Danny Glover

Acclaimed Actor, Producer & Leading Social Activist

Jim McCann

President & CEO of 1-800-FLOWERS.COM

Ralph Nader

Consumer Advocate, Lawyer & Author; Former Independent Presidential Candidate

Graham Hill

Founder of Life Edited & TreeHugger.com

Pat Mitchell

Editorial Director & Host of TEDWomen; Co-Chair of the Women's Media Center; Former President of CNN Productions & PBS

Moby

Musician, DJ, Photographer

Pattie Sellers

Chair of Fortune's Most Powerful Women & Award-Winning Multimedia Journalist; Co-Founder & CEO at SellersEaston Media

Rachel Simmons

Internationally Recognized Educator & Best-Selling Author

Patrick Byrne

Founder & CEO, Overstock.com

Nikolaj Coster-Waldau

Actor Known for his Role as Jamie Lannister on HBO's "Game of Thrones"

Blaise Agüera y Arcas

Leading AI Researcher, Works on Machine Intelligence at Google; Former Architect of Bing Maps and Bing Mobile

Ubi Sunt

Shaun Tomson

Former World Champion Surfer, Environmentalist & Motivational Speaker

Steve Blank

Serial Entrepreneur; Founder, Lean Startup Movement

Philippe Cousteau

Explorer, Social Entrepreneur & Environmental Advocate; Grandson of Captain Jacques-Yves Cousteau

Dr. Dean Ornish

Physician, Leading Researcher in Healthcare, Founder of the Preventive Medicine Research Institute & Bestselling Author

Kimberley Locke

Singer / Television Personality

Nicholas Christakis

Sol Goldman Family Professor of Social & Natural Science; Director of the Human Nature Lab; Co-Director of the Yale Institute for Network Science

Harry Shearer

Actor and Comedian; Known for "The Simpsons" and "Spinal Tap"

Craig Venter

Founder & CEO of Synthetic Genomics Inc.

Dr. Jerome Groopman

Physician, Author, Anatomy of Hope, How Doctors Think. Your Medical Mind

John Zogby

Trendspotter & Leading Pollster

Samantha Power

Former United States Ambassador to the United Nations, Pulitzer Prize-Winning Author & Harvard Professor

Michael Steele

Conservative Political Commentator & Former Republican Party Politician

Alonzo Mourning

Naismith Memorial Basketball Hall of Fame Inductee; Co-Founder of Mourning Family Foundation