Sonia Nazario

Pulitzer Prize-Winning Author & Journalist; Author of "Enrique’s Journey"

Simon Lovell

English Comedy Magician, Card Shark Actor and Con Man

Jurnee Smollett

Actress & Singer

Alison Gopnik

Professor & World Leader in Children's Learning and Development

Avi Rubin

Professor of Computer Science & Technical Director of the Information Security Institute at Johns Hopkins University

Julia Bacha

Award-Winning Documentary Filmmaker, Creative Director at Just Vision

Jae Rhim Lee

Artist and TED Fellow Jae Rhim Lee Re-Imagines the Relationships Between the Body and the World

Jeremy Gilley

Actor, Filmmaker & Founder of the Peace One Day Non-Profit

Dalia Mogahed

President and CEO, Mogahed Consulting, LLC; Author, "Who Speaks for Islam?"

Harald Haas

Communications Technology Innovator & Chair of Mobile Communications at the University of Edinburgh

Rami George Khouri

Executive Editor of Lebanese Newspaper, The Daily Star

Francis Tapon

Author, Harvard MBA, and World Traveler

Daniel Pipes

Foreign Policy Expert & President of The Middle East Forum

Amy Lockwood

Deputy Director of Stanford's Center for Innovation in Global Health

Sarah Culberson

Princess of Sierra Leone, Humanitarian, Educator & Author of "A Princess Found"; Keynote Speaker on Empowerment, Leadership, Diversity & Inclusion.

Princess Sarah Culberson: Speaking Reel

Nomi Prins

Distinguished Political-Financial Expert, Journalist & Author

James Traub

Global Affairs & Politics Writer

Isaiah Washington

NAACP Image and SAG Award Winning Actor and Activist, Best Known as "Dr. Burke" On "Grey's Anatomy"

Carl Hobert

Best-Selling Author & K-12 Educator

Richard Dowden

Director, Royal African Society

Gen. Peter Pace, USMC (Ret.)

Chairman, Joint Chiefs of Staff (2005-2007)

Ambassador Munir Akram

Former Permanent Representative to the UN from Pakistan

Richard Quest

Renowned CNN Business Correspondent

Jamal Simmons

Democratic Strategist & Political Commentator

Nathalie Miebach

The Intersection of Art and Science

Richard Wilkinson

Studied the Social Effects of Income Inequality and How Social Forces Affect Health

Lee Cronin

With his research group, Lee Cronin is investigating the emergence of complex self-organising chemical systems -- call it inorganic biology.

Azadeh Moaveni

Associate Professor, Writer, Journalist & Author

Woman. Life. Freedom. Iran's Feminist Movement

Bing West

Correspondent & Military Author

Cynthia McKinney

Former Congresswoman