Steve Schmidt

Vice President & Chief Information Security Officer at Amazon Web Services

Steve Spurrier

Athletic Consultant for University of Florida, Former University of South Carolina Head Football Coach & Heisman Trophy Winner

Steve Weisman

Editorial Director and Public Policy Fellow at the Peter G. Peterson Institute for International Economics

Steve Winter

Wildlife Photojournalist

Steven Levy

Technology Journalist & Author

Steven Raichlen

TV Personality & Bestselling Author of the "Barbecue Bible" Cookbook Series

Summer Glau

Actress Best Known for the series 'Firefly' and its film sequel 'Serenity'; Also appeared in 'Terminator: The Sarah Connor Chronicles', 'The 4400', and The CW series 'Arrow'

Suneel Gupta

Connecting Well-Being and Performance Expert, Healthcare Entrepreneur, Best-Selling Author, Host of American Express Business Class Docuseries & Visiting Scholar at Harvard Medical School

The Science Behind Tiny Breaks

Sunny Hostin

Co-Host of "The View," Attorney, Author & Emmy Award-Winning Journalist; Senior Legal Correspondent & Analyst for ABC News

Suraj Sharma

Actor Who Starred in "Life of Pi" and Will Appear in "Homeland"

Susan Lucci

Iconic Day-time TV Actress, Entrepreneur & Humanitarian

Susan Tardanico

Former Textron Executive; Current CEO of the Authentic Leadership Alliance; Focus on Women and Emerging Leaders

Sutton Foster

Award-Winning Actor, Singer & Dancer

Suzanne Braun Levine

Former Editor of Ms.; Expert on Women and Aging

Switchfoot

Alternative Rock Band Known for "I Dare You to Move" & "Meant to Live"

Sydney Leroux

Professional Soccer Player & Olympic Gold Medalist

T.I.

Grammy Award-Winning Rapper & Record Producer

TV on the Radio

American Experimental Rock Band

Taio Cruz

British Pop singer/songwriter who acheived international chart-topping success in 2010 with smash hit singles "Break Your Heart" and "Dynamite."

Tamar Braxton

Singer-Songwriter and Youngest Sister of R&B Singer Toni Braxton; Dancing With the Stars Season 21