Steven Levitt

Economist, NY Times Bestselling Author of "Freakonomics," "SuperFreakonomics" & "Think Like a Freak"

Spike Lee

Academy Award-Winning Writer, Producer, Actor & Director; Best Known for "BlacKkKlansman" & "Malcolm X"

Winona LaDuke

Executive Director of Honor the Earth

Ray Kurzweil

Chairman of Kurzweil Technologies, Inventor & Futurist; Author of "How to Create a Mind"

Daniel Kraft, M.D.

Physician-Scientist; Founder of Exponential Medicine; Chair for Medicine & Neuroscience at Singularity University

Dr. Bernice King

Minister, Attorney, Author & Daughter of Dr. Martin Luther King Jr.

Katty Kay

Award-Winning Journalist & Anchor; Best-Selling Author

Dr. Michio Kaku

World-Renowned Futurist & Theoretical Physicist

Ashley Judd

Actress, Activist & Humanitarian

Debbie Allen

Creative Marketing Expert & Business Speaker

David Agus

Co-Founder of Navigenics, Author of "The End of Illness" & Host of "The Checkup with Dr. David Agus"; Professor of Medicine & Engineering at the University of Southern California

The Book of Animal Secrets

Mike Abrashoff

Leadership Speaker, Former Commander of USS Benfold & Author of "It's Your Ship"

Jim Abbott

Former One-Handed Major League Baseball Pitcher

Benjamin Zander

Conductor of the Boston Philharmonic Orchestra; Celebrated Leadership & Performance Expert

How to Live a Life of Possibility | Benjamin Zander - YouTube

Walter R. Stahel

Architect, Editor of the Risk Management Newsletter of The Geneva Association & Sustainability Advocate

April Ryan

White House Correspondent, MSNBC Political Analyst, D.C. Bureau Chief for TheGrio & Author

Scott McEwen

Attorney & Author of "American Sniper"

Kehinde Wiley

Visual Artist Specializing in Portrait Painting; Painted Barack Obama's Official Portrait

Diane Guerrero

Immigration Reform Activist & Actress Known for "Orange is the New Black" & "Jane The Virgin"

Helen Greiner

CEO at Tertill, Co-Founder & Former President of iRobot Corporation

Brian Krebs

Leading Cybercrime Journalist & New York Times Bestselling Author of "Spam Nation"

Tim Grover

CEO of Attack Athletics, Best-selling Author of "Relentless" and "Jump Attack"

Rishi Manchanda

Physician, Public Health Innovator, President & CEO of HealthBegins

Eric Thomas

Inspirational Speaker, Life Strategist & Author

Jeremy Bout

Executive Producer & Host of Edge Factor

Yoruba Richen

Award-Winning Documentary Filmmaker; Known For TED Talk on the Intersection of Civil Rights & LGBT Rights

Monica Lewinsky

Producer, Social Activist, Contributing Editor to Vanity Fair, Expert on Cyberbullying, Women's Issues & Reinvention

Monica Lewinsky Suits Up for Reformation's New Power Voting Campaign

Geena Rocero

Transgender Model & Advocate; Founder of Gender Proud

Geena Rocero Is Writing Her Truth - GLAMOUR Cover Story

Kimberly Bryant

Founder & CEO of Ascend Ventures & Black Innovation Lab; Founder of Black Girls CODE

Nir Eyal

Bestselling Author & Expert on the Intersection of Psychology, Technology and Business