Aarón Sánchez

Award-Winning Chef, TV Personality, Author & Founder of the Aarón Sánchez Impact Fund

Alan Cumming

Emmy-Winning Actor Who Stars in "The Good Wife"

Alec Ross

Author of "The Industries of the Future," and Recent Senior Advisor for Innovation to Hilary Clinton

Alex Steffen

Author of "Carbon Zero: Imagining Cities That Can Save the Planet"

Alfonso Ribeiro

Host of America’s Funniest Home Videos, Actor, TV Director, Award-Winning Dancer & Broadway Star

Alonzo Mourning

Naismith Memorial Basketball Hall of Fame Inductee; Co-Founder of Mourning Family Foundation

Amy Gutmann

United States Ambassador to Germany; Former President of UPenn

Andy Roddick

Tennis Commentator & Former Co-Host of Fox Sports Live; Retired World No. 1 Tennis Player & International Tennis Hall of Famer

Anna Faris

Actress, Singer, Podcast Host, and Comedian Known For Her Roles in "Just Friends," "Scary Movie," "The House Bunny" & CBS' "Mom"

Bakari Sellers

Author, Attorney, Political Commentator & Youngest African American Elected Official in the U.S.

Ben Goldacre

Physician; Best-Selling Academic & Science Writer

Ben Rector

Emmy-Nominated Singer-Songwriter & Record Producer

Bernard Kouchner

Former Minister of Health of France; Founder of Nobel Peace Prize-Winning Médecins Sans Frontières

Bethany Joy Lenz

Actress, Singer-Songwriter & Filmmaker; Known For "One Tree Hill"

Bill Clinton

42nd President of the United States; Founder of the William J. Clinton Foundation

Bill Walton

Basketball Legend, Executive Chairman of Connect SD Sport Innovators (SDSI)

Bjorn Lomborg

Political Scientist & Author of "The Skeptical Environmentalist"

Blair Underwood

Award-Winning Actor & Producer

Blaise Agüera y Arcas

Leading AI Researcher, Works on Machine Intelligence at Google; Former Architect of Bing Maps and Bing Mobile

Ubi Sunt

Bob Arnot

Medical and Foreign Correspondent and Best-Selling