Aisha Tyler

Actress & Comedian

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Dr. Ian Smith

Doctor, New York Times Bestselling Author, Medical Contributor & Host of "The Doctors"

John Bohannon and Black Label Movement

Science writer + Dance troupe + Cellists

John Cho

Actor Known for "Harold & Kumar" Series & "Star Trek" Reboot Series

Lynn Crawford

Executive Chef, Author & Television Personality

Marlee Matlin

Academy Award Winning Actress; Healthcare Advocate & Disability Rights Activist Fighting for Better Access for the Deaf

Peter Salgo

Healthcare Futurist, Emmy Award-Winning Health & Science Correspondent & Author of "The Heart of the Matter"

Robert Ballard

Renowned Ocean Explorer & Scientist

Sean Astin

Actor, Director, Voice Artist & Producer Known For "Lord of the Rings"

Sinbad

Stand-Up Comedian & Actor

Sinbad is back after a stroke: ‘Miracles happen’

Wil Wheaton

Actor, Author & Blogger; Known for "Star Trek: The Next Generation" & "The Big Bang Theory"