Nev Schulman

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

Ashley Judd

Actress, Activist & Humanitarian

George Takei

Actor, Social Justice Activist & Social Media Mega-Power

Ian Somerhalder

Actor Known for "The Vampire Diaries"; Animal & Environmental Advocate; Founder of The Ian Somerhalder Foundation

Rita Moreno

Award-Winning Actress, Dancer, Singer; Health Advocate & New York Times Bestselling Author

Kal Penn

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

Blythe Danner

Emmy Award-Winning Actress & Activist

Melissa Rivers

Actress, Television Host & Producer, Equestrienne, and Philanthropist; Daughter of Late Comedian Joan Rivers

Lauren Potter

Actress Best Known for "Glee;" Special Needs Advocate

Andie MacDowell

Film Actress

Ronda Rousey

Former UFC Champion & WWE Wrestler; Olympic Medalist; Actor & Author

Our Fight: A Memoir

Nia Long

NAACP Image Award-Winning Television & Film Actress, Philanthropist

Jamie Kennedy

Actor & Comedian; Best Known for "The Jamie Kennedy Experiment"

Diane Guerrero

Immigration Reform Activist & Actress Known for "Orange is the New Black" & "Jane The Virgin"

Robert Wuhl

Actor, Comedian & Writer; Best Known for "Arli$$"

Geoffrey West

Theoretical Physicist, Distinguished Professor & Past President of Santa Fe Institute