Rita Moreno

Award-Winning Actress, Dancer & Singer; New York Times Best-Selling Author

Katty Kay

Award-Winning Journalist & Anchor; Best-Selling Author

B.J. Novak

Actor, Writer & Comedian Known for "The Office"

Diane Guerrero

Immigration Reform Activist & Actress Known for "Orange is the New Black" & "Jane The Virgin"

Monica Lewinsky

Producer, Social Activist, Contributing Editor to Vanity Fair, Expert on Cyberbullying, Women's Issues & Reinvention

Liz Wiseman

President of The Wiseman Group & Best-Selling Author of "Multipliers"

Sophia Bush

Actress, Humanitarian & Author

Kal Penn

Actor, Writer, Producer & Former Associate Director of the White House Office of Public Engagement

Jay Pharoah

Actor, Stand-Up Comedian & Impressionist; Former Saturday Night Live Cast Member

'Think Tank' Ep. 2: Jay Pharoah & Simmi Singh Meme Shaq O'Neal

Bob Woodward

Legendary Pulitzer Prize-winning Journalist, Best-Selling Author & Associate Editor at The Washington Post

Kara Swisher

Host of Sway Podcast, Contributing Opinion Writer, New York Times & Co-Host of Pivot Podcast at New York Magazine

Randi Zuckerberg

CEO & Founder of Zuckerberg Media; Bestselling Author; Business Radio Show Host

Natasha Lyonne

Actress known for "American Pie" and "Orange Is the New Black"

Amy Purdy

Former "Dancing with the Stars" Contestant & Paralympic Professional Snowboarder

Giuliana and Bill Rancic

Stars of the reality TV show "Giuliana & Bill" on Style Network

Shawn Achor

Harvard Professor, Researcher, Positive Psychology Expert, Author of "The Happiness Advantage" & "Big Potential"

Dr. John C. Maxwell

Leadership Expert & Author

Eric Ries

Entrepreneur & Author of "The Lean Startup"

Daphne Oz

Emmy Award-winning Television Host, New York Times Bestselling Author, Chef & Entrepreneur

Andy Borowitz

New York Times Best-Selling Author and Comedian; Creator of the Borowitz Report