Matt Roloff

Star of "Little People, Big World"

Mark Lynas

Environmental Writer; Author of "Our Final Warning: Six Degrees of Climate Emergency"

Sandra Fluke

Lawyer, Social Justice Advocate, Women's Health Expert

Dan Meyer

Exploring the Way We Teach Teachers to Teach Kids

Dale Dougherty

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

Monica Pearson

First Female & African-American News Anchor in Atlanta

Teddy Zee

Film Producer

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"

Bunker Roy

Founder of Barefoot College

Lou Waters

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

Where Are They Now: Lou Waters

Joshua Prince-Ramus

Architect & Principal of REX Design Firm

Brittney Griner

WNBA Player for the Phoenix Mercury & Author of "In My Skin"

Brittney Griner's first press conference since being released

Claude Steele

Social Psychologist & Stereotype Expert

Edward Lewis

Co-Founder of Essence Magazine & One of the Most Successful Publishers in the Country

Donald Ratajczak

Nationally-Known Economist and One of the Leading Econometric Forecasters in the United States

Abhi Nemani

Former Chief Data Officer for the City of Los Angeles, Co-founder of Ethos Labs, Technological Optimist & Political Philosophy Nerd

Amber Jenkins

Applied Science Engineer, NASA’s Jet Propulsion Laboratory; Editor, NASA Climate Change Website

Kate White

Former Editor-In-Chief of Cosmopolitan Magazine; New York Times Best-Selling Author

David Rich

Keynote Speaker and Leading Expert on Persuasion and Motivation

Rehema Ellis

Chief Education Correspondent at NBC News