Danny Glover

Acclaimed Actor, Producer & Leading Social Activist

Daphne Oz

Emmy Award-winning Television Host, New York Times Bestselling Author, Chef & Entrepreneur

Dara Torres

12x Olympic Medalist, NYT Bestselling Author, Entrepreneur & Healthcare Reform Advocate

Dara Treseder

Chief Marketing Officer at Autodesk; Former SVP, Head of Global Marketing & Communications at Peloton

Marketing’s Future Rooted in ‘Creativity and Innovation’

Darin Olien

Co-Host of Netflix "Down To Earth" with Zac Efron, Best-Selling; Original Formulator of "Shakeology;" Healthy Living & Superfoods Expert

Darrell Hammond

Comedian, Actor & Second Longest Running Cast Member of SNL

Daryl Hannah

Actress, Best Known for "Kill Bill" & "Splash"; Environmental Activist

Dave Portnoy

Owner and Founder of Barstool Sports

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 Christian

David Christian teaches an ambitious world history course that tells the tale of the entire universe -- from the Big Bang 13 billion years ago to present day.

David Crane

Strategic Advisor Executive at Pegasus Capital Advisors; Former President & CEO of NRG Energy, Inc.; Climate Advocate

David Henrie

Actor Known for his Role as Justin Russo in Disney's "Wizards of Waverly Place"

David Malpass

President, World Bank Group; former Chief Economist, Bear Stearns; former Treasury and State Department Official

David Mamet

Pulitzer Prize-Winning Playwright

David McCandless

Author of "Information Is Beautiful" & Infographics Expert

David Miliband

President & Chief Executive Officer of the International Rescue Committee; Former UK Foreign Secretary

David Nico

Author, Health Strategist & Leadership Well-Being Expert

Nico sample clip

David O. Russell

Writer and Director known for Award Winning Films "Silver Linings Playbook" and "American Hustle"

David Perlmutter

Renowned Neurologist, Expert on Gluten Issues, Brain Health, Nutrition & Preventing Disease

David Plouffe

Obama Campaign Manager, White House Senior Advisor, Former Tech Executive for Uber & 2x New York Times Best-Selling Author

David Reibstein

Professor of Marketing, Wharton School of Business

David Zinczenko

Founder & CEO of Galvanized; Former Vice President of Men's Health, Women's Health & Prevention; Retired Nutrition & Wellness Editor at ABC News

Dayana Mendoza

Former Beauty Queen, Founder of the Dayana Mendoza Shop, TV Host & AIDS Advocate

DeRay Mckesson

Civil Rights Activist Focusing on Innovation, Equity & Justice; Host of "Pod Save The People"

Debby Ryan

American Actress, Singer & Star of Disney Series "Jessie" and "Sweet Life on Deck"

Debora Spar

NYT Bestselling Author & Senior Associate Dean of Business & Global Society, Harvard Business School

Deborah Norville

Two-Time Emmy Award-Winning Journalist; Anchor of "Inside Edition" & Best-Selling Author

Dee Dee Myers

Former White House Press Secretary; Former Head of Corporate Communications & Public Affairs at Warner Brothers

Denise Austin

Fitness Expert, Author & Video Hall of Famer

Dennis DeYoung

Founding Member of the Rock Group Styx