Andie MacDowell

Actress and Heart Health Activist

David Kirkpatrick

Best-Selling Author of The Facebook Effect, Technology & Internet Expert

Venus Williams

Tennis Superstar & Activist

Simon Sinek

World-Renowned Leadership Expert & Best-Selling Author

Simon Sinek: "The Finite and Infinite Games of Leadership ...

Dean Kamen

Inventor and Entrepreneur; President, DEKA Research & Development Corporation

Nancy Snyderman, MD

Chief Medical Editor, NBC News

Alexis Ohanian

Partner at Y Combinator; Co-Founder of reddit, Entrepreneur, Investor, Activist & Bestselling Author of "Without Their Permission"

Bill Nye

"The Science Guy"; Science Communicator, TV Presenter, and Mechanical Engineer

Guy Kawasaki

Chief Evangelist of Canva, Former Advisor of Motorola Business Unit of Google & Chief Evangelist of Apple

Wise Guy: Lessons from a Life

Ashley Judd

Actress, Activist, and Humanitarian

TedxNashville - Ashley Judd - My Life's Work as an Act of Worship

Andrew McAfee

Co-Founder & Co-Director, Initiative on the Digital Economy Principal Research Scientist, MIT Sloan School of Management

Machine, Platform, Crowd: Harnessing Our Digital Future

Professor Richard Dawkins

English Ethologist, Evolutionary Biologist, Charles Simonyi Professor of the Public Understanding of Science, New College, University of Oxford

Professor Richard Dawkins 'It Works' - YouTube

Lisa Gansky

Corporate Advisor, Marketing Expert, Author of "The Mesh: Why the Future of Business Is Sharing"

Judy Smith

America's No. 1 Crisis Management Expert & Inspiration for ABC's "Scandal"

John Ratzenberger

Emmy-Nominated Actor, Entrepreneur & Philanthropist

Tim Gunn

Fashion Icon and Co-Host and Mentor of "Project Runway"

Heidi Klum, Tim Gunn leaving 'Project Runway' for Amazon

Sophia Bush

Actress, Humanitarian & Author; Currently starring on "Chicago PD"

Kal Penn

Actor Known for His Role in "House" and "Harold and Kumar" Films, Producer and Political Activist

Erik Brynjolfsson

Director of the MIT Center for Digital Business & Co-Author of "The Second Machine Age"

Ree Drummond

Host of "The Pioneer Woman" on the Food Network