Martha Williamson

Martha Williamson is a 20-year veteran of the entertainment industry.

Chris Matthews

Former Host, Hardball with Chris Matthews, MSNBC

Robert Kenner

Documentary Filmmaker; Known for "Food, Inc."

Ben Goldacre

Physician; Best-Selling Academic & Science Writer

Jesse Dylan

Founder/CEO of Wondros & Filmmaker

Don McMillan

Corporate Comedian Known for his 'Nerdy' Sense of Humor

Lori Dennis

Celebrity Interior Designer, Green Living Expert, Influencer, & Author

Abbey Curran

Former Miss Iowa; Founder of “Miss You Can Do It Pageant”; Author

Kris Jenner

Media Personality, Producer, & Entrepreneur; CEO of Jenner Communications; Known for "The Kardashians"

How Kris Jenner Made The Kardashians Famous, Rich And Insanely Influential

Timothy Shriver

Chairman & CEO of the Special Olympics

Joshua Malina

Actor Known for his roles in "The West Wing" & "Scandal"

David Bach

Best Selling Author & Personal Finance Expert

Brian Hoffstein

Contributing Writer

Elizabeth Cohen

Senior Correspondent for the CNN Health, Medical, & Wellness Unit

Elizabeth Cohen - CNN news story on baby formula shortage

Paul Rieckhoff

Founder and Executive Director of Iraq and Afghanistan Veterans of America (IAVA); Author, "Chasing Ghosts: Failures and Facades in Iraq"

David Houle

Global Futurist & Strategist, Honorary President and Futurist of the Future Business School of China. Houle won two Emmys, a Peabody award and the Heartland award for "Hank Aaron: Chasing the Dream"

Moving to a Finite Earth Economy | David Houle | TEDxUofIChicago

Russell Brand

Comedian, Actor, Radio Host, Author & Activist

Kevin Breel

Stand Up Comic & Mental Health Activist

Jeffrey Kluger

Journalist; Editor and Writer at TIME MAGAZINE. Author of 8 books, including APOLLO 13.

Dave deBronkart

Kidney Cancer Survivor & Patient Advocate Known as "e-Patient Dave"