Arnold Schwarzenegger

Actor, Producer, Director, Writer; California’s 38th Governor; Host of "Celebrity Apprentice"

Michael J. Fox

Actor, Author and Advocate; Founder, The Michael J. Fox Foundation for Parkinson’s Research

Michael J. Fox on latest Parkinson's research and how he's ...

Howard Schultz

Executive Chairman & Former CEO of Starbucks; Former Owner of the Seattle SuperSonics

Bill Maher

Political Satirist & Host of HBO's "Real Time"

Malala Yousafzai

Youngest-Ever Nobel Prize Winner; Advocate for Girls' Education & Women's Equality; Author of the International Bestseller "I Am Malala"

John Oliver

Emmy-Winning Comedian, Best Known for "The Daily Show with Jon Stewart" & "Last Week Tonight"

Bobby Flay

Chef & Host of "Throwdown With Bobby Flay" and "America's Next Great Restaurant"

Cynthia Nixon

Actress Known for her Role as Miranda Hobbes on HBO's "Sex and the City"; Former Candidate for Governor of New York

Rosie O'Donnell

Comedian, Actress, Author & Television Personality

Deepak Chopra

Co-Founder of The Chopra Center for Wellbeing

Mayim Bialik

Neuroscientist, Mental Health Advocate & Actress Known for "The Big Bang Theory"

Tim Ferriss

Angel Investor & Author of "The 4-Hour Workweek"

Hoda Kotb

Award-Winning Broadcast Journalist, Television Personality, Author & Co-Anchor of NBC News' TODAY

Marlo Thomas

Emmy Award-Winning Actress, Social Activist & Presidential Medal of Freedom Recipient

Biz Stone

Co-Founder of Twitter

Stephen A. Smith

Sports Journalist, Analyst & Talk Show Host Known for "First Take"

Bret Michaels

Singer-Songwriter, Musician & Reality Television Personality

Anne Wojcicki

Co-Founder & CEO of 23andMe

Ross Mathews

Host of Hello Ross! & Author of "Man Up: Tales of My Delusional Self-Confidence"

Christy Turlington Burns

Model & Founder of Every Mother Counts; Anti-Smoking Activist