Dana Perino

Political Commentator, Co-Anchor of "America's Newsroom" & Podcast Host of "Perino on Politics"; Former White House Press Secretary

Daniel Boulud

Executive chef and owner of Manhattan's award-winning "DANIEL", "Cafe Boulud", and "DB Bistro Moderne"; named "Chef of the Year" by Bon Appetit Magazine

Daniel's Dish: Entertaining at Home With a Four-Star Chef

Danny Glover

Acclaimed Actor, Producer & Leading Social Activist

Dave Asprey

Founder of Bulletproof, Father of Biohacking & NYT Best-Selling Author

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

David Boies

Founder and the chairman of the law firm, Boies, Schiller & Flexner

David McCormick

Running To Be United States Senator for Pennsylvania

Davis Guggenheim

Academy Award-Winning Director & Producer Known for "He Named Me Malala," "An Inconvenient Truth," "Waiting for Superman" & "Still: A Michael J. Fox Movie"

Daymond John

"Shark Tank" Investor; Founder & CEO of FUBU; Presidential Ambassador for Global Entrepreneurship

Dean Kamen

Founder of FIRST; President of DEKA Research & Development Corporation

Dennis Dimick

Former Executive Environment Editor at National Geographic Magazine

Dennis Prager

Host of the Dennis Prager Radio Show, Co-Founder of Prager University, NY Times Bestselling Author & Columnist

The Ten Commandments: Still the Best Moral Code

Dov Seidman

Founder & CEO of LRN; Organizational Development & Effectiveness Advisor

Dr. Dean Ornish

Physician, Leading Researcher in Healthcare, Founder of the Preventive Medicine Research Institute & Bestselling Author

Dr. John Kao

Chairman, Institute for Large Scale Innovation, Bestselling Author of "Innovation Nation" and "Jamming: The Art and Discipline of Business Creativity"

Dr. Julie Silver

Doctor & Breast Cancer Survivor Specialized in Rehabilitation Medicine and Physical Recovery

Dr. M. Joycelyn Elders

Former Surgeon General of the United States

Dr. Michio Kaku

World-Renowned Futurist & Theoretical Physicist

Dr. Tererai Trent

Internationally Recognized Voices for Quality Education and Women’s Empowerment; Oprah Winfrey's "All-Time Favorite Guest"

Ed Parsons

Geospatial Technologist of Google; Technology Evangelist