Kal Penn

Actor, Writer, Producer & Former Associate Director of the White House Office of Public Engagement

David McCullough

Historian and Bestselling Author

Nev Schulman

Producer, Actor, Photographer & TV Host Known for MTV's "Catfish: The TV Show"

Spike Lee

Academy Award-Winning Writer, Producer, Actor & Director; Best Known for "BlacKkKlansman" & "Malcolm X"

The Revolutionary Art Of Spike Lee's New Netflix Film | Emory ...

Shawn Achor

Harvard Professor, Researcher, Positive Psychology Expert, Author of "The Happiness Advantage" & "Big Potential"

Ashley Judd

Actress, Activist & Humanitarian

Ashley Judd: Women, we are in the fight of our lives

Giuliana Rancic

Entertainment Journalist & Breast Cancer Survivor

Thomas Middleditch

Actor, Voice Actor, Comedian, Screenwriter Known for "Silicon Valley"

Benjamin Zander

Conductor of the Boston Philharmonic Orchestra; Celebrated Leadership & Performance Expert

Dom Sagolla

Co-Creator of Twitter; Author of "140 Characters"

George Takei

Actor Known for His Role in "Star Trek;" LGBTQ & Japanese-American Civil Rights Activist

George Takei on why the original ‘Star Trek’ never featured a gay character

Simon Sinek

World-Renowned Leadership Expert & Best-Selling Author