Brad Meltzer

Host of History Channel’s "Lost History" & "Brad Meltzer’s Decoded;" New York Times Best-Selling Author

Andrea Mitchell

Host of MSNBC’s "Andrea Mitchell Reports" & Chief Foreign Affairs Correspondent for NBC News

Andrea Mitchell - Celebrating 15 years of "Andrea Mitchell Reports"

Graham Hill

Founder of Life Edited & TreeHugger.com

Tatyana Ali

Actress, Singer & Activist; Best Known for "The Fresh Prince of Bel-Air"

Dr. Myron Rolle

Former NFL Player, Neurosurgeon & Rhodes Scholar

Jesse Jackson

Civil Rights Activist & Politician

Eric Ryan & Adam Lowry

Co-Founders of Method Products, Inc.

Vinny Guadagnino

Reality TV Personality, Author & Actor, Known for "Jersey Shore"

Elizabeth Cohen

Senior Correspondent for the CNN Health, Medical, & Wellness Unit

Elizabeth Cohen - CNN news story on baby formula shortage

Aaron McGruder

Writer and Cartoonist; Known for "The Boondocks"

Greg Smith

Wall Street Insider and Former Goldman Sachs Executive

Hugh Evans

Humanitarian; Founder & CEO of Global Poverty Project

Malaak Compton

Activist & Philanthropist

Lara Logan

Journalist, Former "60 Minutes" Correspondent & Chief Foreign Affairs Correspondent for CBS

Amy DuBois Barnett

Chief Content Officer, theGrio.com & EVP Digital, Entertainment Studios

Oscar Pistorius

"Blade Runner"; Double-Amputee Olympic Sprinter

Kevin Colleran

Managing Director of Slow Ventures & Former Facebook Executive

Cory Booker

U.S. Senator from New Jersey; Author of "United" & Former Democratic Presidential Candidate

Bernard Kouchner

Former Minister of Health of France; Founder of Nobel Peace Prize-Winning Médecins Sans Frontières

Dr. M. Joycelyn Elders

Former Surgeon General of the United States