George Mitchell

Global Diplomat, Peace Negotiator & Leadership Expert; Former Senate Majority Leader Who Enjoyed Bipartisan Respect

Bruno Mars

Grammy Award-Winning Singer-Songwriter & Record Producer

Vali Nasr

Professor of International Affairs & Middle East Studies at Johns Hopkins University

Islamic Leviathan: Islam and the Making of State Power (Religion and Global Politics)

Andrew Zimmern

Four-Time James Beard Award-Winning TV Personality, Chef, Writer & Teacher

Peter Sagal

Host of NPR's "Wait Wait ... Don't Tell Me!"

Matt Miller

Fortune Columnist, Author & Radio Host

Pranav Mistry

Computer Scientist & Inventor

Andrew Ng

Globally Recognized Leader in AI; Co-Founder & Chairman of Coursera

Rainn Wilson

Actor Known for "The Office" & Creator of SoulPancake

Soul Boom: Why We Need a Spiritual Revolution

Pete Cashmore

Entrepreneur & Founder of Mashable

Charles Best

Founder and Former CEO, DonorsChoose.org

From Classroom To Crowdfunding

Dr. William Li

Physician, Scientist & Bestselling Author of “Eat to Beat Disease: The New Science of How Your Body Can Heal Itself” and “Eat to Beat Your Diet: Burn Fat, Heal Your Metabolism, and Live Longer”

Nathan Myhrvold

Founder of Intellectual Ventures; Former Chief Strategist & Chief Technology Officer of the Microsoft Corporation; Author of “Modernist Cuisine: The Art and Science of Cooking"

Mary Roach

TED Speaker & Author Known for "Packing For Mars"

Perez Hilton

Popular Celebrity Gossip Blogger; Podcast Host, YouTuber & Owner of "My True 10"

Peter Sims

Entrepreneur & Best-selling Author; Known for "Little Bets: How Breakthrough Ideas Emerge from Small Discoveries"

Black Sheep

Sharon Wood

First North American Woman to Climb Mount Everest

Katrina Markoff

Founder & CEO, Vosges Haut-Chocolat

Charles Leadbeater

Innovation Expert & Author

Cameron Sinclair

World-Class Visionary; Co-Founder of Architecture for Humanity