Joseph Gordon-Levitt

Founder of HitRecord & Actor Known for "Inception" & "The Dark Knight Rises"

Pearl Arredondo

Student Advocate, Education Reformer & Principal

Leslie Bradshaw

Executive Mentor & Co-Founder and Partner at Bradshaw Vineyards

Pete Cashmore

Entrepreneur & Founder of Mashable

Marc Maron

Standup Comedian, Host of the Podcast "WTF with Marc Maron" & Star of the IFC Comedy "Maron"

Marc Maron Gets Serious in His Comedy Special From Bleak to Dark

Matthew Bishop

Nonresident Senior Fellow of Global Economy and Development at the Center for Sustainable Development

Patricia Sellers

Multimedia Journalist, CEO of SellersEaston Media Co. & Chair of the Fortune Most Powerful Women Summit

Eric Saperston

Best-Selling Author & Award Winning Filmmaker

David Leonhardt

Op-Ed Columnist & Former Washington Bureau Chief at The New York Times

Elise Foster

Engineer Turned Motivational Educator & "Multipliers" Master Practitioner at The Wiseman Group

Tina Wells

Founder, CEO, Buzz Marketing Group

Michael Fertik

Founder of Reputation.com, Internet Security Expert & Best-selling Author

Richard Besser

President & CEO of the Robert Wood Johnson Foundation; Former Chief Health & Medical Editor for ABC News

Michael Barone

Senior Political Analyst, Washington Examiner

Wendell Pierce

Author and Actor, best known for "The Wire" and HBO's "Treme"

Lisa P. Jackson

Vice President of Environment, Policy & Social Initiatives at Apple

Theodore B. Olson

Former US Solicitor General; Attorney at Gibson, Dunn & Crutcher

Antonio Villaraigosa

41st Mayor of Los Angeles

Andrew Revkin

Senior Fellow for Environmental Understanding at Pace University

Barbara Ehrenreich

Political Activist & Author of "Nickel and Dimed" and "Living with a Wild God"