Dr. John Boockvar

Vice Chair of the Department of Neurosurgery at Lenox Hill Hospital & Director of the Department’s Brain Tumor Center; Featured on Netflix's "Lenox Hill"

Dr. Jennifer Ashton

Board-Certified Ob-Gyn, Author & TV Medical Correspondent

Vanessa Bayer

Actress & Comedian Known for "Saturday Night Live" and "Trainwreck"

Tiki Barber

NFL Former Pro Bowl Running Back & Founder of Thuzio

Andy Cohen

Emmy Award-Winning Host & Producer of Bravo’s "Watch What Happens: Live"

Andy Cohen reacts to his infamous New Year’s Eve rant

Gloria Steinem

Feminist Writer, Activist & Organizer; Co-Founder of New York Magazine & Ms. Magazine

Nancy Snyderman, MD

Retired Surgeon & Award-Winning Medical Journalist

Brooke Shields

Actress; Model; Women's Health, Aging & Mental Wellness Advocate

Daymond John

"Shark Tank" Investor; Founder & CEO of FUBU; Presidential Ambassador for Global Entrepreneurship

Bill Cowher

NFL Studio Analyst for CBS’ The NFL Today, 15-year Head Coach & Super Bowl Champion with the Pittsburgh Steelers

Bethenny Frankel

Entrepreneur, Reality TV Star & Bestselling Author; Founder of Skinnygirl & BStrong Disaster Relief

Maria Menounos

CEO & Co-founder of AfterBuzz TV; Former E! News Co-Anchor; Best-selling Author, Journalist & Type-1 Diabetic

Dr. Mikhail Varshavski

Known as "Doctor Mike;" Leading Medical Media Voice Who Communicates the Value of Preventive Medicine

Anderson Cooper

Journalist, TV Personality, Anchor of CNN's "Anderson Cooper 360°"

Maura Tierney

Golden Globe Award-Winning Actress & Breast Cancer Survivor

Donna Karan

Award-Winning Fashion Designer

Cynthia Nixon

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

Kelly Ripa

Host of "Live! with Kelly and Mark"

Rachel Maddow

Host of "The Rachel Maddow Show" on MSNBC

Christy Turlington Burns

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