"Science Bob" Pflugfelder

Science Teacher, Enthusiast & Author

A$AP Ferg

Hip-Hop Recording Artist From Harlem; Member of the Hip-Hop Collective A$AP Mob

A.G. Lafley

Former Chairman, CEO & President of Procter & Gamble

Aaron Sanchez

Award-Winning Chef, Owner of Johnny Sanchez Restaurant & Judge on Masterchef

Aaron Tveit

Actor and Performer; Known for his Role as Danny in "Grease: Live"

Abbey Curran

Former Miss Iowa; Founder of “Miss You Can Do It Pageant”; Author

Abigail Johnson

President & CEO of Fidelity Investments

Adam Bly

Ex-VP of Data at Spotify; Founder of Seed; Founder of an AI startup, Stealth

Adam Fleischman

Founder & Chairman, Umami Restaurant Group

Adam Kreek

Gold Medal Olympian, Four-time World Champion, Entrepreneur & High Performance Expert

Adam Nash

VP of Product & Growth for Dropbox, Lecturer at Stanford University

Adaora Udoji

CEO & Founder of outLoud Inc., Angel Investor and Former Award-Winning Journalist

Admiral William Fallon

Military Commander; Cybersecurity Expert

Adrian Davis

Professional speaker, focused on sales excellence, corporate strategy

Ahmed Shihab-Eldin

Emmy-Nominated Journalist; Correspondent & Producer at VICE Media, LLC

Ai Weiwei

Chinese artist who helped create Beijing's Bird's Nest stadium, Director of "Human Flow"

Aileen Lee

Founder & Managing Partner at Cowboy Ventures; Founding Member of All Raise

Ainissa Ramirez

Scientist. STEM Advocate. Science Communicator. Author.

Ajay Shah

Chief Executive Officer & Co-Founder TVplus

Al Jarreau

Grammy Award-Winning Jazz Singer

Al Lautenslager

Marketing/PR Consultant, Author, and Entrepreneur

Al Roker

Co-Host NBC Today Show Media Entrepreneur, Author

Alan Parisse

Leadership, Marketing & Change Management Expert

Albert Mensah

Renowned Motivational Speaker & Author

Be Yourself Motivational Speech for Youth | Albert Mensah Public

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"

Alex Thomopoulos

TV Food Personality, Private Chef, Comedian and Actress

Alexander Ludwig

Actor Known for his Role in "The Hunger Games"; Currently Appears in History Channel's "Vikings"

Alfie Kohn

Author & Speaker on Human Behavior, Education, & Parenting; Outspoken Critic of Education's Fixation on Grades

Alfre Woodard

Emmy Award-Winning Actress; Human Rights Activist