Andreas Schleicher

Deputy Director for Education and Skills and Special Advisor on Education Policy to the OECD's Secretary-General

Marc Abrahams

Creator of the Ig Nobel Prizes

Dale Dougherty

Founder of MAKE Magazine, Creator of Maker Faire, Founder & CEO of Maker Media

Bill Dedman

Pulitzer Prize-Winning Investigative Reporter for NBC News; Co-Author, "Empty Mansions: The Mysterious Life of Huguette Clark and the Spending of a Great American Fortune"

Eleanor Longden

Mental Health Advocate & Speaker; Postdoctoral Service User Research Manager at Psychosis Research Unit

Compassion for Voices: a tale of courage and hope

Kevin Bales

Professor of Contemporary Slavery, & Research Director of the Rights Lab at the University of Nottingham; Co-Founder of Free the Slaves

Phaedra Parks

Producer, Entertainment Attorney & Cast Member of Bravo's "The Real Housewives of Atlanta"

Sasha Andreev

Actor, Emcee & Host of HGTV's "Curb Appeal"

Vilayanur Ramachandran

Neuroscientist; Director of the Center for Brain & Cognition, University of California, San Diego

Jenny Lawson

Writer, Humorist & Mental Health Advocate; NYT Bestselling Author of "Let's Pretend This Never Happened," "Furiously Happy," & "You Are Here and Broken"

Nina Davuluri

Thought Leader, Filmmaker, Activist, Performer & Entrepreneur

IronE Singleton

Best known as Theodore "T-Dog" Douglas on AMC's "The Walking Dead"

Philip Zimbardo

Psychologist Known for the Notorious '1971 Stanford Prison Experiment;' Researcher of the Psychology of Heroism, Evilness and Time

Chuck Hughes

Canadian Chef, Restaurateur, and Host on the Food Network & Cooking Channel

Michelle Aguilar

Winner of NBC's "The Biggest Loser" Season 6, Author, Motivational Speaker

Ahmed Hassan

Celebrity Landscaper & TV Host of DIY's Yard Crashers, Blog Cabin, Turf War

Jaslene Gonzalez

Puerto Rican-American Model, TV Host & Winner of America's Next Top Model; Founder of "On Set with Jaslene"

Jennifer Senior

New York Times Book Critic; Best-Selling Author of "All Joy & No Fun: The Paradox of Modern Parenthood"

Pat Smith

TV Persona, Entrepreneur, President & CEO of Emmitt & Pat Smith Enterprises

Lou Waters

Aging Expert, Journalist & Former CNN Media Personality; Anchor of "Coming of Age"

Where Are They Now: Lou Waters