April Ryan

White House Correspondent, MSNBC Political Analyst, D.C. Bureau Chief for TheGrio & Author

Brian Krebs

Leading Cybercrime Journalist & New York Times Bestselling Author of "Spam Nation"

Tim Grover

CEO of Attack Athletics, Best-selling Author of "Relentless" and "Jump Attack"

Monica Lewinsky

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

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Geena Rocero

Transgender Model & Advocate; Founder of Gender Proud

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Dan Harris

Award-Winning ABC News Anchor & #1 New York Times Best-Selling Author

Sara Critchfield

Vice President of Global Outreach at the Fetzer Institute

Tess Vigeland

Author, Veteran Journalist & CEO of Tess Vigeland Productions

Amy Robach

Co-Host of "Amy & T.J. Podcast"; Former Co-Host of "20/20" & Former ABC News Correspondent for "Good Morning America;" Breast Cancer Survivor

Jon Steinberg

CEO of Future Plc., Founder of Cheddar; Former President & COO of Buzzfeed; Former CEO of Daily Mail.com in North America

Janet Mock

Author, Feminist, Transgender Rights Activist, TV Host & Founder of #GirlsLikeUs

Josh Peck

Actor & Social Media Influencer

James McQuivey

Vice President, Principal Analyst, Forrester Research Inc.

David Zinczenko

Founder & CEO of Galvanized; Former Vice President of Men's Health, Women's Health & Prevention; Retired Nutrition & Wellness Editor at ABC News

Jenna Marbles

YouTube Sensation

Dara Torres

12x Olympic Medalist, NYT Bestselling Author, Entrepreneur & Healthcare Reform Advocate

Phil Donahue

Creator and Host of "Donahue," the Long-Running Talk Show

Phil Hansen

Internationally Recognized Multimedia Artist, Author & Innovator; Collaboration Art Experience Presenter

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Sophia Bush

Actress, Humanitarian & Author

David McCandless

Author of "Information Is Beautiful" & Infographics Expert