Kevin Spacey

Two-Time Academy Award-Winning Actor, Director, Producer, Screenwriter and Singer; Best Known For His Roles in "American Beauty" and Netflix's "House of Cards"

J.B. Straubel

Co-Founder & Former Chief Technical Officer of Tesla

Magic Johnson

Basketball Hall of Famer, Entrepreneur, Philanthropist & Motivational Speaker

Bill Nye

"The Science Guy"; Science Communicator, TV Presenter & Mechanical Engineer; Climate Change Activist

Gary Vaynerchuk

Co-Founder & CEO of VaynerMedia

Simon Sinek

World-Renowned Leadership Expert & Best-Selling Author

Venus Williams

Professional Tennis Player, Four-Time Olympic Gold Medalist, Equal Pay Activist, Author & Entrepreneur

Dr. John C. Maxwell

Leadership Expert & Author

Ronda Rousey

UFC Champion, Olympic Medalist, Actor & Author

Andy Cohen

Host & Producer of Bravo’s "Watch What Happens: Live;" Former EVP of Development & Talent at Bravo

Benjamin Zander

Conductor of the Boston Philharmonic Orchestra; Celebrated Leadership & Performance Expert

Guy Kawasaki

Chief Evangelist of Canva & Executive Fellow of the Haas School of Business (UC Berkeley); Former Chief Evangelist of Apple

Robin Roberts

Award-Winning Co-Anchor on ABC's "Good Morning America;" Breast Cancer & MDS Survivor

Archie Manning

Former NFL Great & Ambassador of Goodwill

Shawn Achor

Harvard Professor, Researcher & Positive Psychology Expert; Author of "The Happiness Advantage" and "Big Potential"

Shawn Achor on happiness as a competitive advantage

Ashley Judd

Actress, Activist & Humanitarian

Ashley Judd: Women, we are in the fight of our lives

Giuliana Rancic

Entertainment Journalist & Breast Cancer Survivor

Giuliana Rancic and Bill Are Open to Re-Trying IVF to Grow Family ...

Dr. Michio Kaku

World-Renowned Futurist & Theoretical Physicist

Ray Lewis

Celebrated NFL Linebacker, The Ray Lewis Family Foundation Founder & ESPN Commentator

Andie MacDowell

Actress Known for "Four Weddings & a Funeral;" Heart Health Activist