Dale Spencer

Expert in Overcoming Fear to Arrive at Professional and Personal Success; Board of Directors, ThinkFirst National Injury Prevention Foundation

Damon Wayans Jr.

Actor, Known for his Roles in "Happy Endings" and "New Girl"

Daniel Altman

Sports Analytics & Strategy Expert

Darryl Van Leer

Television Actor & Stage Performer

David Cook

Peak Performance Coach & Author

David MacAulay

David Macaulay gets under the skins of skyscrapers, mosques, pyramids, subways, and a host of other ancient and modern marvels. His lavish and micro-detailed renderings expose the world's secret engineering to dazzled readers of all ages.

David Meerman Scott

Global Marketing Guru & Sales Expert

David Satcher, M.D., Ph.D.

16th US Surgeon General; Founding Director of the Satcher Health Leadership

Dennis Snow

Customer Service Expert, Formerly with the Disney Institute, Business Author

Derald Wing Sue

Professor & Author

Devon Harris

Member of First Jamaican Bobsled Team; Featured in Hit Disney Movie, "Cool Runnings"

Doc Hendley

Global Humanitarian, Clean Water Crusader, Top 10 CNN Hero, Sustainability Advocate

Don Yaeger

Award-Winning Leadership Coach & Best-Selling Author

Doug Lansky

Award-Winning Travel Writer, World-Travel Expert & Travel Trends Futurist

Dr. Dorothy Espelage

International Expert in Bullying; William C. Friday Distinguished Professor of Education at UNC-Chapel Hill

Preventing Bullying and Violence in Schools and Beyond

Dr. Ian Smith

Doctor, New York Times Bestselling Author, Medical Contributor & Host of "The Doctors"

Dr. Jawanza Kunjufu

Author, Speaker & Founder of African American Images

Dr. Nido Qubein

Award-Winning Speaker and Author, President of High Point University

Dr. Patricia Dykes

Assistant Professor of Medicine at Harvard Medical School; Sr. Nurse Assistant, Program Director of Patient Safety Research and Practice, & Program Director of the Center for Nursing Excellence at Brigham & Women's Hospital

Dr. Stanley Hauerwas

Gilbert T. Rowe Professor Emeritus of Divinity and Law at Duke Divinity School