Ken Jennings

Jeopardy! "Greatest Of All Time" Winner; Longest Jeopardy! Winning Streak with 74 Games & NYT Bestselling Author

Franklin Graham

President & CEO of the Billy Graham Evangelistic Association, Christian Evangelist & Missionary

Kevin O'connor

Professional Speaker, Teacher, Coach & Author for Medical and Technical Leaders

Marvin Zonis

Political Economist & Consultant

Craig Kielburger

Co-Founder of the WE Organization, Social Entrepreneur, Humanitarian & New York Times Best-Selling Author

Hope Solo

Professional Soccer Goalkeeper; Two-Time Olympic Gold Medalist; World Cup Champion; Currently Plays for the Seattle Reign FC

Jon Lajoie

Comedian, Actor, Musician & Internet Celebrity

Julie Powell

Author of "Julie & Julia"

Steven Brill

Award-Winning Journalist and Author

Dr. Marc Lamont Hill

Temple University Professor, BET News Correspondent, Activist, Author

Drew Gilpin Faust

President of Harvard University

Rachel Simmons

Bullying and Leadership Expert

Paula Poundstone

Stand-Up Comedian, Television Personality and Panelist on NPR's "Wait Wait...Don't Tell Me"

Blaise Aguera y Arcas

Works on Machine Intelligence at Google; Former Architect of Bing Maps and Bing Mobile

Blaise Agüera Y Arcas | Rights and Liberties in an Automated World

Philippe Cousteau

Explorer, Social Entrepreneur & Environmental Advocate; Grandson of Captain Jacques-Yves Cousteau

Karen Post

Branding Expert & Entrepreneur

Peter Vidmar

Olympic Gymnast, Fitness Advocate

Marc Eckō

Founder & Chief Creative Officer of Marc Ecko Enterprises, Author of Unlabel: Selling You Without Selling Out

Barry Farber

Sales Guru, Entrepreneur Magazine Columnist, TV Host

Kevin Daum

Founder and CEO, TAE International; Author, "Roar!" & "Video Marketing For Dummies;" Columnist, Inc.com