Erin Brockovich

Consumer Advocate, Author, TV Host & Environmental Activist

Jacqueline Novogratz

Founder & CEO of Acumen Fund

Manifesto For A Moral Revolution: Practices To Build A Better World

Brittany Snow

Actress, Producer, Director, Singer & Co-Founder of Love Is Louder

Sean Gourley

Physicist and Founder & CEO of Primer

Robert Muggah

Co-Founder of the Igarapé Institute & The SecDev Group; Research Director and Program Coordinator for Citizen Security

Adrian Grenier

Actor Known for HBO's "Entourage"; Environmental Activist; UN Ambassador

Xiuhtezcatl Martinez

Indigenous Climate Activist, Hip-Hop Artist, Author & Youth Director of Earth Guardians

Hip hop artist and activist Xiuhtezcatl Martinez talks climate change

Jamie Margolin

Climate Change Activist; Author; Founder & Co-Executive Director of Youth-Led Climate Action Group "Zero Hour"

Taya Kyle

Advocate for Military Veterans and Families; Widow of Former U.S. Navy SEAL Chris Kyle

Shawn Johnson East

Olympic Gold Medalist in Gymnastics, "Dancing with the Stars" Winner & Best-Selling Author

Shawn Johnson Opens Up About Body Image Struggles, Drug Use and Going from '110 Lbs. to...

Danny Trejo

Actor, Activist & Restaurateur

Raj Panjabi

Co-Founder & CEO, Last Mile Health; Assistant Professor, Harvard Medical School

Dr. Raj Panjabi Warns COVID-19 Could Cause "Viral Apartheid"

Marc Summers

Television Host of Food Network's "Unwrapped", Spokesperson for Obsessive Compulsive Disorder, Co-Author of "Everything In Its Place"

What Nickelodeon Slime Is Made: 'Double Dare' Host Marc Summers

Sean Astin

Actor, Director, Voice Artist & Producer Known For "Lord of the Rings"

Dr. Cornel West

Philosopher, Professor, Political Activist, Author of "Race Matters"

Amanda Seales

Poet, Spoken Word Artist & Media Personality, Stars on HBO's "Insecure"; Anti-Smoking Activist

Dr. Joel Selanikio

Award-Winning Physician, Health & Technology Activist, CEO of Magpi & Founding Member of WHO’s Digital Health Roster of Experts

Shannon Miller

Olympic Gold Medalist, Health Advocate & Cancer Survivor

Zak Williams

Global Mental Health Advocate; Son of Legendary Comedic Actor Robin Williams

Robin Williams' Son Zak on His Depression and Anxiety After His Dad's Death: 'I Was Tra...

Jonathan Van Ness

Hair & Beauty Expert, Author, Television Personality; Known for Netflix's "Queer Eye"

‘Queer Eye’ Wins Structured Reality Award as Creative Arts Emmys Kicks Off with Night O...