Oprah Winfrey

CEO of Oprah Winfrey Network, Presidential Medal of Freedom Recipient & National Women's Hall of Famer

Tony Robbins

Entrepreneur, Best-Selling Author & Peak Performance Strategist

Robert Downey Jr.

Actor, Producer

Sir Richard Branson

Businessman & Founder of Virgin Group

Jessie Reyez

Canadian Singer-Songwriter Known for "Figures"

Dr. Mehmet Oz

Cardiothoracic Surgeon; Host of "The Dr. Oz Show;" Columbia University Professor & Author

Bryan Cranston

Actor, Author & Activist Best Known for "Breaking Bad;" Alzheimer's Advocate

Peter Jackson

Director Known for the "Lord of the Rings Series" and "King Kong"

Anna Kendrick

Award-Winning Actress, Singer & Author

George Soros

Chairman of Soros Fund Management LLC, Founder of Open Society Foundations & Philanthropist

Brian Chesky

Co-Founder, CEO & Head of Community at Airbnb

Tom Hanks

Actor, Producer, Writer & Director; Known For "Forrest Gump"

Hillary Clinton

United States Secretary of State, Obama Administration; Former First Lady

WATCH: Hillary Clinton's full speech at the 2020 DNC

Bono

Lead Singer of U2, Activist & Co-Founder of DATA (Debt, AIDS, Trade, Africa)

James Cameron

Founder and Executive Vice Chairman, Climate Change Capital

Dionne Warwick

Grammy Award-Winning Singer, Actress & TV Host

Christo Greyling

Director, HIV and Infectious Diseases, World Vision International

Sergey Brin and Larry Page

Sergey Brin and Larry Page invented Google: the technology, the company, the verb.

Albert Bourla

Chief Executive Officer at Pfizer

Albert Bourla on why mRNA technology was "counterintuitive"

Cynthia Marshall

CEO of the Dallas Mavericks; President & CEO, Marshalling Resources Consulting

You've Been Chosen: Thriving Through the Unexpected