Dr. Dean Ornish

Physician, Leading Researcher in Healthcare, Founder of the Preventive Medicine Research Institute & Bestselling Author

Joy-Ann Reid

MSNBC Correspondent, Political Author & Host of "The ReidOut"

Medgar and Myrlie: Medgar Evers and the Love Story that Awakened America

Susan Rice

Domestic Policy Advisor (2021-2023); U.S. National Security Advisor (2013-2017); and U.S. Ambassador to the United Nations (2009-2013)

Susan Rice, leaving the administration, talks of what's possible in a divided nation

Alonzo Mourning

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

Eva Mendes

Actress; Six-Time ALMA Award Nominee; International Spokeswoman for Revlon Cosmetics

Selena Gomez

Actress & Singer; Best Known for "Wizards of Waverly Place"

Marie Osmond

Singer, Host, TV Personality & Author of "Behind The Smile: My Journey Out of Postpartum Depression"

Tim Tebow

ESPN College Football Analyst; Heisman Trophy Winner; Former Quarterback for NFL's Denver Broncos & Baseball Outfielder for the New York Mets

Kurt Warner

Super Bowl Champion Quarterback and Two-Time NFL MVP; Adoption Advocate

Sheila C. Johnson

Entrepreneur, CEO of Salamander Hotels and Resorts, President of WNBA's Washington Mystics & Co-Founder of BET

Walk Through Fire: A Memoir of Love, Loss, and Triumph

Chrissy Teigen

Model, Author & Television Personality

Timothy Shriver

Chairman & CEO of the Special Olympics

Dan Heath

Bestselling Author, Senior Fellow at Duke University’s CASE Center & Co-Founder of Thinkwell

Nicholas Kristof & Sheryl WuDunn

Pulitzer Prize-Winning Journalists for "Half the Sky" & Human Rights Advocates

Eric Ripert

Chef, Author & Host of "Avec Eric"

Sarah Silverman

Stand-Up Comedian, Actress, Singer, Producer & Writer

Ruby Rose

Australian Model, DJ, Actress & TV Presenter; Known for "Batwoman" & "Orange is the New Black"

Marcus Lemonis

Serial Entrepreneur, Investor and Leadership Expert; Chairman and CEO of Camping World; Star of CNBC 'The Profit', 'Streets of Dreams' and HGTV's 'The Renovator'; Philanthropist and Founder of The Lemon-AID Foundation

Dr. John Kao

Chairman, Institute for Large Scale Innovation, Bestselling Author of "Innovation Nation" and "Jamming: The Art and Discipline of Business Creativity"

Ava DuVernay

Academy Award-Nominated Director & Producer Known for "Selma," "13th" & "When They See Us"

How Film Changes the Way We See the World | Ava DuVernay | TED