Mayim Bialik

Neuroscientist & Actress, Known For "The Big Bang Theory"

Ziauddin Yousafzai

Co-Founder of the Malala Fund

Malala & Ziauddin Yousafzai in conversation - YouTube

Michelle Rhee

Founder of StudentsFirst & Education Reform Advocate; Former D.C. Public Schools Chancellor

Cynthia Nixon

Actress Known for her Role as Miranda Hobbes on HBO's "Sex and the City"; Former Candidate for Governor of New York

Robert Cialdini

New York Times Best-Selling Author & The Foundational Expert in the Science of Influence

Building Relationships And Influencing People: Part 2

Dan Abrams

Chief Legal Affairs Anchor at ABC News & Founder of Abrams Media

Mike Huckabee

Politician, Former Governor of Arkansas & Host of TBN's "Huckabee"

Ice-T

Rapper, Record Producer, Actor Known for "Law & Order: SVU"

Gina Rodriguez

Award-Winning Actress, Producer, Director, Model & Humanitarian

Sean Astin

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

Jackie Joyner-Kersee

Olympic Legend, Philanthropist, American Record-Holder in the Long Jump & Founder of the Jackie Joyner-Kersee Foundation

Nicholas Kristof

Pulitzer Prize-Winning New York Times Columnist & Political Commentator

Jacqueline Novogratz

Founder & CEO of Acumen Fund

Wendy Kopp

CEO of Teach For All & Founder of Teach For America; Childhood Education Advocate

Phylicia Rashad

Advocate for Children, Women's Issues & Fine Arts; Actress Best Known for "The Cosby Show"

Dr. Ian Smith

Doctor, New York Times Bestselling Author, Medical Contributor & Host of "The Doctors"

Dr. Ian Smith returns to reformatted ‘The Doctors’ as new host

Jeremy Rifkin

Leading Global Technologist, Futurist, Authority on World Economic & Environmental Trends

Buzz Aldrin

Former Fighter Pilot & 2nd Man to Walk on the Moon; Author

Wilmer Valderrama

Actor, Producer, Activist & Television Personality

Eva Longoria

Award-Winning Actress, Producer, Director, Activist, Philanthropist & Designer