Dan Abrams

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

Malala Yousafzai

Youngest-Ever Nobel Prize Winner; Advocate for Girls' Education & Women's Equality; Author of the International Bestseller "I Am Malala"

John Lithgow

Actor, Musician, Author, Arts Advocate

Dr. Kate Biberdorf

Science Entertainer, Professor & Author Known as Kate the Chemist

Eileen Kelly

Founder of Killer and a Sweet Thang, Host of "Going Mental" Podcast

Hi, Meet My Mental Illness - Dating with a Disorder

Ntiedo Etuk

Founder and CEO DimensionU, Inc.

Greg Graffin

Lead Singer of Bad Religion & Professor of Biology at UCLA

Mike Brown, Ph.D.

Astronomer & Author of "How I Killed Pluto and Why It Had It Coming"