Nina Garcia

Editor-In-Chief of Elle Magazine, Judge on "Project Runway;" Alzheimer's Awareness & Prevention Advocate

Danny Glover

Acclaimed Actor, Producer & Leading Social Activist

Ginger Zee

Chief Meteorologist for ABC News, Author & Mental Health Advocate

Chasing Helicity: Through the Storm (The Chasing Helicity Series) (Chasing Helicity Ser...

Debbie Sterling

Tech Engineer & Founder and CEO of GoldieBlox; Advocate for Women in STEM

Jeffrey Toobin

Former CNN Senior Analyst & Best-Selling Author

Sebastian Junger

Award-Winning Journalist, Documentarian, New York Times Best-Selling Author of "The Perfect Storm" and "On Homecoming and Belonging"

In My Time of Dying: How I Came Face to Face with the Idea of an Afterlife

Joey Soloway

Comedian, Playwright, Writer & Director; Best Known for Amazon's "Transparent"

Adrienne Bailon Houghton

Daytime Emmy Award-Winning Television Host; Acclaimed Pop-Vocalist; Producer & Founder of the Faith-Based Jewelry Brand "XIXI"

Nicholas Sparks

International Bestselling Novelist & Screenwriter, Known for "The Notebook"

Nasim Pedrad

Actress, Comedian & Former "SNL" Cast Member

Shane Dawson

Popular YouTube Comedian

Demetri Martin

Comedian & Actor Known for Netflix's "The Overthinker;" Former Contributor on "The Daily Show"

John Lithgow

Actor, Musician, Author, Arts Advocate

General Wesley Clark

Retired Four-Star Army General & Former NATO Supreme Allied Commander

Uzo Aduba

Emmy Award-Winning Actress Known for "Orange is the New Black" & "Mrs. America"

Anna Kournikova

International Tennis Icon, Health & Fitness Advocate, Former World #1 Doubles Player and #8 Singles Player; Former Co-Host on NBC’s “The Biggest” Loser (2011), Named to the Forbes “Power 100” in 2000

Michaela Watkins

Former SNL Cast Member & Comedic Actress Known for "The Back-up Plan" and "Wet Hot American Summer: First Day of Camp"

Lil Rel Howery

Comedian & Actor Known for "Get Out" & "Rel"

John C. McGinley

Actor, Author & Former Comedian; Advocate for Down Syndrome Awareness; Best Known for "Scrubs"

Alison Sweeney

Actress & TV Personality Known for "Days of Our Lives" & "The Biggest Loser"

Chris Webber

Hall of Fame Basketball Player, Number One NBA Draftee & Five-Time NBA All-Star

By God's Grace

Kel Mitchell

Award-Winning Comedic Actor, Best Known for "Kenan & Kel," "Good Burger" and "All That"

Hank Green

#1 New York Times Best-Selling Author & CEO of Complexly

Wendy Williams

Media Personality, Actress, Author, & Host of "The Wendy Williams Show"

Norah O'Donnell

Anchor of the CBS Evening News & Correspondent for 60 Minutes

Kara DioGuardi

Music Industry Songwriter & Producer

Zosia Mamet

Actress Known for Her Role in HBO's "Girls"

Alec Ross

Author of "The Industries of the Future," and Recent Senior Advisor for Innovation to Hilary Clinton

Ali Velshi

CNN Chief Business Correspondent

Small Acts of Courage: A Legacy of Endurance and the Fight for Democracy

La La Anthony

Actress & Television Personality