Aly Raisman

Olympic Gymnast, Gold Medalist, Captain of the "Fierce Five" & the "Final Five"

Charlie Alejandro

Motivational Speaker, Writer, Actress & Radio Talk Show Host

Watts Wacker

Futurist & Commentator

David Pogue

Host of NOVA ScienceNow & Yahoo Tech Columnist

Mitch Resnick

Mitchel Resnick is LEGO Papert Professor of Learning Research, Director of the Okawa Center, and Director of the Lifelong Kindergarten group at the MIT Media Lab.

Robert Ballard

Renowned Ocean Explorer & Scientist

Exploring America's Last Fronteir | Robert Ballard ...

Benjamin Zander

Conductor, Teacher, Speaker on The Art of Possibility

Jeff Taylor

Founder of Monster.com & Eons.com

David Breashears

Everest Adventurer, Filmmaker & Senior Lecturer at MIT Sloan School of Leadership

Andrew Cohen

Founder, EnlightenNext

Joseph Covelle

Speaking From the Heart To Help Change Minds

Jonathan Kozol

Educator & Social Justice Advocate

Lawrence Summers

Professor & Former President of Harvard University; Former Secretary of the Treasury, Director of the National Economic Council, & Chief Economist of the World Bank

Presidential counsel - Lawrence H. Summers speaking at GCGC 2018

Rachel Simmons

Bullying and Leadership Expert

Ken Burns

Historian & Award-Winning Filmmaker

Robert Eccles

Visiting Professor of Management Practice, Saïd Business School, Oxford

Cynthia Montgomery

Timken Professor of Business Administration & Director of Research at Harvard Business School

Dan Gilbert

Psychologist; Happiness Expert

Loretta LaRoche

Consultant, Author & TV Personality

Peter Girguis

Associate Professor of Natural Sciences at Harvard; Adjunct Research Engineer at the Monterey Bay Aquarium Research Institute