Lisa Randall

Award-Winning Physicist & Author

Dark Matter and the Dinosaurs: The Astounding Interconnectedness of the Universe

Mark Lowry

Singer-Songwriter, Author & Christian Comedian

Rick Smolan

CEO of Against All Odds Productions, Photographer, Author & Big Data Enthusiast

Rick Pitino

Head Coach of St. John's Men's Basketball Team

Tim Hawkins

Christian Youth Pastor, Musician & Comedian

Korie Robertson

Star of A&E's "Duck Dynasty"

Isaac Mizrahi

Fashion Designer & Former Creative Director of Liz Claiborne

John Tesh

Inspirational Radio Host, Pianist & Composer; Known for His Radio Show "Intelligence for Your Life"

John Tesh Music - YouTube

Robert Greene

New York Times Bestselling Author of "The 48 Laws of Power," "The Art of Seduction," "The 33 Strategies of War," and "The 50th Law"

Richard Engel

NBC News Chief Foreign Correspondent

Kathy Reichs

Bestselling Author, Forensic Anthropologist & Producer of Fox's "Bones"

Danny Trejo

Actor, Author, Activist & Restaurateur; Recovery & Intervention Counselor for Troubled Youth

Antonio Damasio

Director of the Brain Institute

Steven Levy

Technology Journalist & Author

James McBride

New York Times Best-Selling Author & Musician

Evanna Lynch

Actress Known for her Role as Luna Lovegood in the "Harry Potter" Series

Max Lucado

Award-Winning Author & Senior Pastor of the Oak Hills Church

Dustin Lance Black

Academy Award-Winning Writer of "Milk" & "J.Edgar"

Charlyne Yi

Writer, Artist, Composer & Actor Known for "House" and "Steven Universe"

Robert Sutton

New York Times Bestselling Author & Professor of Management Science & Engineering at Stanford University

Mary Mary

Gospel Superstars, Known for Hits including "Shackles (Praise You)"

Aaron McGruder

Writer and Cartoonist; Known for "The Boondocks"

Gene Kim

Author of the Wall Street Journal Best-Seller, "The Unicorn Project"

Wiring the Winning Organization: Liberating Our Collective Greatness through Slowificat...

Martin Luther King III

Civil Rights Activist, Global Humanitarian & Political Leader

Lance Armstrong

World Champion Cyclist, Olympian & Cancer Survivor

Thomas Keller

Chef, Cookbook Author & Proprietor of The French Laundry, Per Se, Bouchon, Bar Bouchon, Bouchon Bakery, and Ad Hoc

Adam Ostrow

Chief Digital Officer, TEGNA

David Plouffe

Obama Campaign Manager, White House Senior Advisor, Former Tech Executive for Uber & 2x New York Times Best-Selling Author

Michael York

Award-Winning Actor

Tori Spelling

Actress, Reality TV Star, Socialite & Author