Donald Ratajczak

Nationally-Known Economist and One of the Leading Econometric Forecasters in the United States

Dr. Holly G. Atkinson

Award-Winning Medical Journalist

Julianne Malveaux

Economist, Author & Political Commentator; President Emerita of Bennett College for Women

Nik Wallenda

Acrobat, Aerialist, Daredevil & High Wire Artist

Dr. Paul Wolpe

Director of the Emory Center for Ethics

Mark Lynas

Environmental Writer; Author of "Our Final Warning: Six Degrees of Climate Emergency"

Rehema Ellis

Chief Education Correspondent at NBC News

Danny White

Arizona Rattlers Head Coach & General Manager

Dale Dougherty

Founder of MAKE Magazine, Creator of Maker Faire, Founder & CEO of Maker Media

Tim Arthur

Group CEO of Time Out and BBC London 94.9 Sunday Breakfast Host

Lou Waters

Aging Expert, Journalist & Former CNN Media Personality; Anchor of "Coming of Age"

Where Are They Now: Lou Waters

Dr. Carl Hart

Professor of Psychology & Chair of Department of Psychology at Columbia University

Jennifer Senior

New York Times Book Critic; Best-Selling Author of "All Joy & No Fun: The Paradox of Modern Parenthood"

Thurl Bailey

Former NBA Player & Broadcast Analyst

Jeremy Bout

Executive Producer & Host of Edge Factor

Spencer West

Inspirational Adventurist; Social Activist; Expert on Overcoming Stereotyping & Bullying

Spencer West

Kate White

Former Editor-In-Chief of Cosmopolitan Magazine; New York Times Best-Selling Author

Barbara Lippert

MediaPost Editor-At-Large; Expert on Advertising, Marketing and Women's Issues

Dave McClure

Entrepreneur & Startup Advisor, 500 Hats

Joe Pulizzi

Founder of the Content Marketing Institute & Author of "Content, Inc."