Howard Greenstein

Social Media Strategist and Evangelist, and President of the Harbrooke Group

Avi Kaplan

Founder and Digital Strategist at Ozen Media.

Geoff Livingston

Sales and marketing for Zoetica and provides research and strategy services.

Andy Neusner

Senior Manager of Web Content, The Jewish Federations of North America

Steve Farrar

Dr. Steve Farrar is the founder and chairman of Men’s Leadership Ministries and the author of best-selling books.

Nabarun Dasgupta

Senior Scientist at UNC Injury Prevention Research Center Innovation Fellow, UNC Gillings School of Global Public Health

RTP180: Opioids | Dr. Nabarun Dasgupta, UNC Chapel Hill

Laura Lauder

Social Entrepreneur & Venture Philanthropist, Co-Founder of Lauder Family Venture Philanthropy Fund

Sophie Rose

Infectious Disease Epidemiology Fellow at John Hopkins Bloomberg School of Public Health & Co-Founder of 1Day Sooner

Matt Schaub

Quarterback for the Atlanta Falcons

Lilly Marks

Vice President, Health Affairs, University of Colorado (Festival Underwriter)

Matteo Renzi

Former Prime Minister of Italy; Youngest Person to Become PM of Italy; Named One of Fortune's 40 Under 40

Peter LaMotte

President of GeniusRocke

Esti Berkowitz

Social media consultant, kosher food reviewer, and 24/6 mom blogger at Primetime Parenting

Aya Schechter

National Executive Director for Dor Chadash USA.

Christine McNab

Global Public Health Worker & Communications Expert

Alexander McLean

Founder & CEO of Justice Defenders, Senior TED Fellow, Ashoka Fellow, UK Young Philanthropist of the Year, TIME’s 30 Under 30 Changing the World & ‘The Power List’

Ebrahim Rasool

South African Politician

Isabella Matambanadzo

Chief Executive Officer, The Zimbabwe Trust

Gordon Bloom

Director and Founder, Social Entrepreneurship Collaboratory at Harvard.

William MacAskill

Co-Founder & President of the Centre for Effective Altruism; Associate Professor of Philosophy at Oxford University