Peter Gleick

Co-founder & President of the Pacific Institute for Studies in Development, Environment & Security

The Three Ages of Water

Larry Burns

Former VP of Research and Development at General Motors

Marc Brown

Children's Book Author; Creator of "Arthur"; Advote for Children's Literacy

Bernard Baumohl

Chief Global Economist of The Economic Outlook Group, Geopolitical Outlook Forecaster & Bestselling Author of "The Secrets of Economic Indicators"

Terry Bowden

Football Coach & Analyst

Christine Dumas

Consumer Health & Lifestyle Reporter; Strategic Healthcare Policy Advisor; Author

Chad Hennings

Nine-Year Veteran of the Dallas Cowboys, Air Force Thunderbolt Pilot & Author, "Forces of Character"

Jeffrey DeMunn

Played Dale on AMC's Hit Show, "The Walking Dead"

Gloria Feldt

Leading Activist & Best-Selling Author

Intentioning: Sex, Power, Pandemics, and How Women Will Take The Lead for (Everyone's) ...

Dr. Susan Blumenthal

Former US Assistant Surgeon General & Rear Admiral

Kimberly Caldwell

Singer, Actress, & Television Personality; known for "American Idol" Season 2

E.J. Dionne, Jr.

Syndicated Washington Post Columnist; Political Analyst for National Public Radio

Chelsie Hightower

Professional Ballroom Dancer; Known for "Dancing With the Stars" and "So You Think You Can Dance"

Mariette Hartley

Emmy Award-winning actress, Outspoken Advocate for Mental Health Programs

Jose Garces

Iron Chef, Food Network Personality & Founder of Garces Group

Lynn Brewer

Ethics Expert & Author of "Confessions of an Enron Executive: A Whistleblower's Story"

Mimi Donaldson

Speech Coach, Motivational Speaker & Author of "Pitch Perfect: Speak to Grow Your Business in Seven Simple Steps"

Nelson George

Author / Filmmaker

Kat Carney

Former Health News Anchor, CNN Headline News

John Heffron

Winner of Season 2 of NBC's hit reality series "Last Comic Standing"