Diane Sawyer

Anchor, ABC World News

Nia Vardalos

Oscar-Nominated Actress, Screenwriter & Producer Known for "My Big Fat Greek Wedding"

Mike Huckabee

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

Tim Meadows

Actor & Comedian; Known for "Saturday Night Live"

The Ladies Man: Unprotected Sex and Weight Issues - SNL

Leigh Anne Tuohy

Inspirational Subject of "The Blind Side"

Melissa Gilbert

Actress, Author, Activist

Ice-T

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

Sinbad

Stand-Up Comedian & Actor

Baratunde Thurston

Futurist Comedian, Writer & Cultural Critic

Jermaine Fowler

Stand-Up Comedian & Actor; Known for "Superior Donuts"

Amanda Lindhout

Executive Director of The Global Enrichment Foundation; Captivity Survivor, Inspirational Speaker & Author of "A House in the Sky"

Shay Mitchell

Actress, Known for Her Role in "Pretty Little Liars"

How I Launched My Brand | Shay Mitchell - YouTube

Wes Moore

CEO of Robin Hood Foundation, Best-Selling Author & U.S. Army Veteran

Protesting for Change: Wes Moore in Conversation with Willie Geist

John Mattone

Top Ten Leadership Authority, Top Twenty Executive Coach in the World & Best-Selling Author

Kay Koplovitz

Founder of USA Networks & The SyFy Channel; Game Changing Entrepreneur

John Foley

Former Lead Solo Pilot for the Blue Angels; Founder & CEO of CenterPoint Companies

Abby Wambach

6-Time U.S. Soccer Athlete of the Year; Two-Time Olympic Gold Medalist & FIFA Women's World Cup Champion; Pay Equity & LGBTQ Rights Activist

Christian Siriano

Fashion Designer, Founder of Christian Siriano, Winner of "Project Runway" Season 4

Marcus Luttrell

Decorated Navy SEAL & Bestselling Author of "Lone Survivor"

Jason Silva

Emmy-nominated TV Personality; Futurist; Host of National Geographic Channel’s “Brain Games”

Don’t panic — here’s how mindfulness can improve isolation | Jason Silva