Mia Farrow

Acclaimed Actress & Humanitarian Activist

Jackie Kallen

Boxing manager, inspiration for the film "Against the Ropes"

Brian Hoffstein

Contributing Writer

Nicholas Burns

Professor of the Practice of Diplomacy & International Politics, Harvard Kennedy School

Paul Rieckhoff

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

Marsha Petrie Sue

Author of the Best-selling book "Toxic People: Decontaminate Difficult People at Work Without Using Weapons Or Duct Tape"

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

Nancy Lublin

Founder & Former CEO of Crisis Text Line

Kevin Breel

Stand Up Comic & Mental Health Activist

Maude Barlow

Activist, Author & Former UN Senior Advisor on Water

Bob Greene

Exercise Guru & Best-Selling Author

Alan Parisse

Leadership, Marketing & Change Management Expert

Dave deBronkart

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

Dennis Kucinich

Fox News Contributor, Former Ohio US Representative and Two-Time Presidential Candidate

Carol Grace Anderson

Singer, Actor, Motivational Speaker & Author of "Get Fired Up Without Burning Out!"

Marci Shimoff

Co-Author of "Chicken Soup for the Woman's Soul"; Expert on Happiness, Success & Unconditional Love

J.D. Kleinke

Medical Economist, Former Healthcare Executive & Author; Thought Leader and Pioneer in Healthcare Informatics

Quint Studer

Workplace & Leadership Expert

Jonathan Bush

Technology Entrepreneur; Co-Founder & Former CEO of athenahealth

Ira Byock

Dartmouth-Hitchcock Medical Center