Alice Walker

Pulitzer Prize & National Book Award-Winning Author; Best Known for "The Color Purple"

Edie Weiner

President & CEO of The Future Hunters

David Suzuki

Environmentalist & Scientist; Co-Founder of the David Suzuki Foundation

Drew Houston

Co-Founder & CEO of Dropbox

Denise Austin

Fitness Expert, Author & Video Hall of Famer

Nicholas Sparks

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

Juan Williams

New York Times Best-Selling Author, Fox News Political Analyst, Co-Host of "The Five" & Award-Winning Columnist

Brad Meltzer

Host of History Channel’s "Lost History" & "Brad Meltzer’s Decoded;" New York Times Best-Selling Author

Ralph Nader

Consumer Advocate, Lawyer & Author; Former Independent Presidential Candidate

Graham Hill

Founder of Life Edited & TreeHugger.com

Kara DioGuardi

Music Industry Songwriter & Producer

Kevin Nealon

Former Cast Member of 'Saturday Night Live'; Co-Star on Showtime's "Weeds"

Chris D'Elia

Comedian, Actor & Writer; Known for "Undateable," "Whitney," "The Good Doctor," & Netflix Stand Up Comedy Special "Man on Fire"

David Allen

Bestselling Author & Founder of The David Allen Company

Natasha Leggero

Actress & Stand-Up Comedian

Pattie Sellers

Chair of Fortune's Most Powerful Women & Award-Winning Multimedia Journalist; Co-Founder & CEO at SellersEaston Media

Rachel Simmons

Internationally Recognized Educator & Best-Selling Author

Rick Reilly

Sportswriter, Screenwriter, Author & Inductee into the National Sportswriters and Sportscasters Hall of Fame

Steve Levitan

Co-Creator, Executive Producer of ABC's Modern Family

James Patterson

NY Times Best-Selling Author & Reading Champion

Karmin

Pop Duo; Well Known for the Hit Songs "Brokenhearted" and "Hello"

David Mamet

Pulitzer Prize-Winning Playwright

Craig Venter

Founder & CEO of Synthetic Genomics Inc.

John Zogby

Trendspotter & Leading Pollster

Steve Wynn

Creator of Experience-Oriented Las Vegas Resorts

Simon Helberg

Actor & Comedian; Best Known for Role of Howard Wolowitz on "The Big Bang Theory"

Shashi Tharoor

Diplomat & Author; Former United Nations Under-Secretary-General

Carrie Brownstein

Co-Creator, Co-Writer and Co-Star of "Portlandia;" Actress in "Transparent;" Electric Guitarist for Rock Band "Sleater-Kinney"

Jon Meacham

Pulitzer Prize-Winning Historian & Author

Jon Meacham discusses the historic nature of Trump's indictment ...

Parmalee

Country Rock Band Known For Singles Like "Carolina" and "Close Your Eyes"