Willie Robertson

Star, A&E's "Duck Dynasty" CEO, Duck Commander

Dan Marino

Pro Football Hall of Famer, Business Owner & Founder of the Dan Marino Foundation for Improving The Lives of Those on the Autism Spectrum

Lisa Randall

Award-Winning Physicist & Author

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

Elizabeth Vargas

Emmy Award-Winning Journalist; Best-Selling Author; Anchor for NewsNation

Rick Smolan

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

Jase Robertson

COO of Duck Commander & Star of A&E's "Duck Dynasty"

Korie Robertson

Star of A&E's "Duck Dynasty"

Les Stroud

Star of "Survivorman", Producer, Author, Filmmaker & Activist

John Tesh

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

John Tesh Music - YouTube

Judith Light

Award Winning Actress & Activist

Laurence Tribe

Carl M. Loeb University Professor at Harvard Law School & Author

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

Antonio Damasio

Director of the Brain Institute

Donovan Bailey

Hall of Fame Track & Field Legend

Steven Levy

Technology Journalist & Author

James McBride

New York Times Best-Selling Author & Musician

Max Lucado

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

Cheryl Tiegs

Former Sports Illustrated Swimsuit Model; Proclaimed the "All-American" Model

Dustin Lance Black

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