David Moinina Sengeh

Minister Of Basic and Senior Secondary Education & Chief Innovation Officer for the Government of Sierra Leone

Roy Choi

Co-Host of "The Chef Show;" Chef & Co-Founder of Kogi BBQ; Best-Selling Author

Charlamagne Tha God

Radio & TV Personality; Co-Host of the iHeartRadio Program "The Breakfast Club"

Reshma Saujani

Lawyer, Politician, Founder of Girls Who Code & Marshall Plan for Moms

David Sinclair

Author, Professor of Genetics & Co-Director of the Paul F. Glenn Center for the Biology of Aging at Harvard Medical School

Tamron Hall

Award-Winning Journalist; Former National News Anchor for NBC News; Host of the "Tamron Hall Show"

Watch Where They Hide

Lynsey Addario

American Photojournalist; Contributor for National Geographic & Time Magazine

Ronan Farrow

Investigative Reporter, Activist & Lawyer

Peter Zeihan

Energy & Geopolitical Strategist, Author of "The Absent Superpower" & "The Accidental Superpower"

Liz Wiseman

President of The Wiseman Group & Best-Selling Author of "Multipliers"

Sophia Bush

Actress, Humanitarian & Author

Pau Gasol

NBA Power Forward, Two-Time NBA Championship Winner, UNICEF Ambassador

Feike Sijbesma

Chief Executive Officer and Chairman of the Managing Board, Royal DSM, Netherlands

Makaziwe Mandela

Daughter of Nelson Mandela & Director of the House of Mandela Family Foundation

Dr. Jennifer Ashton

Board-Certified Ob-Gyn, Author & TV Medical Correspondent

Will Packer

Award-Winning Producer Known for "Think Like A Man" & "Straight Outta Compton"; Founder of Will Packer Productions

Kal Penn

Actor, Writer, Producer & Former Associate Director of the White House Office of Public Engagement

Sunil Gupta

Head of Marketing Department at Harvard Business School; Expert on Digital Marketing Strategy

Jim McKelvey

Co-Founder of Square, Serial Entrepreneur, Inventor, Philanthropist & Artist

Tsedal Neeley

Naylor Fitzhugh Professor of Business Administration at the Harvard Business School