Adam Garone

Former CEO of the Movember Foundation

Eleanor Longden

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

Compassion for Voices: a tale of courage and hope

Steve Hytner

Actor and Comedian; Known for Playing Kenny Bania on "Seinfeld"

Teddy Zee

Film Producer

Dr. Max Rogers

Former Fighter Pilot, Healthcare Consultant

IronE Singleton

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

Yael Cohen Braun

Co-Founder & Board Chair of F*ck Cancer

Sandra Fluke

Lawyer, Social Justice Advocate, Women's Health Expert

Stuart Firestein

Scientist; Advocate for the Public Understanding of Science

Monica Pearson

First Female & African-American News Anchor in Atlanta

Yusef Komunyakaa

Pulitzer Prize Winning Poet & Professor at NYU

Rehema Ellis

Chief Education Correspondent at NBC News

Uri Dadush

Senior Associate and Director, Carnegie's International Economics Program

James E. Hansen

Adjunct Professor Directing the Program on Climate Science, Awareness and Solutions of the Earth Institute at Columbia University; Former Director at NASA Goddard Institute for Space Studies

Scott McCloud

Cartoonist and Comics Theorist; Author of "Understanding Comics," Reinventing Comics," and "Making Comics"

Dale Dougherty

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

Bunker Roy

Founder of Barefoot College

Natalie Warne

Activist, Advocacy Educator, Engagement Strategist & TED Speaker

Mondo Guerra

Fashion Designer & Advocate for HIV/AIDS Awareness

Olivia Ward

Winner of "Biggest Loser" Season 11

Maynard Webb

Silicon Valley Company Builder, Founder of Webb Investment Network & Former Chairman and CEO of LiveOps

Jaslene Gonzalez

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

Dan Mintz

Comedian and Voice Actor; Known for Playing Tina Belcher on "Bob's Burgers"

Joe Ruffini

Anti-Terrorism, Information Security & Risk Minimization Expert

Dan Meyer

Exploring the Way We Teach Teachers to Teach Kids

Mark Lynas

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

John Sano

Former CIA Agent & Former Deputy Director of National Clandestine Service

Joshua Prince-Ramus

Architect & Principal of REX Design Firm

Amy Waldman

Journalist, Author, "The Submission"

Charlene Strong

Gay Rights Activist