Jessica Seinfeld

Founder & President of GOOD+ Foundation; Author of Three New York Times Bestselling Cookbooks

Susan Stamberg

Nationally Renowned Broadcast Journalist & NPR Special Correspondent

Erin Andrews

Fox Sports Correspondent & Former Co-Host of "Dancing with the Stars"

Cesar Millan

Host of The Dog Whisperer; Author of Cesar's Way

Tim Tebow

ESPN College Football Analyst; Heisman Trophy Winner; Former Quarterback for NFL's Denver Broncos & Baseball Outfielder for the New York Mets

Alice Walker

Pulitzer Prize & National Book Award-Winning Author; Best Known for "The Color Purple"

Edie Weiner

President & CEO of The Future Hunters

Rachel Dratch

Comedian, Actress, and Former SNL Cast Member

David Suzuki

Environmentalist & Scientist; Co-Founder of the David Suzuki Foundation

Jason Reitman

Academy Award-Nominated Director, Screenwriter & Producer; Best Known for His Work on "Juno" and "Thank You For Smoking"

Drew Houston

Co-Founder & CEO of Dropbox

Dick Costolo

Former CEO of Twitter and Co-Founder of Feedburner

Debbie Sterling

Tech Engineer & Founder and CEO of GoldieBlox; Advocate for Women in STEM

Gayle King

Co-Host of "CBS This Morning" & Editor-At-Large of O, The Oprah Magazine

Sandra Lee

Cancer Survivor, Activist, Author, Emmy Award-Winning Television Chef & Home Life Expert

Tamron Hall

Award-Winning Journalist; Former National News Anchor for NBC News; Host of the "Tamron Hall Show"

Watch Where They Hide

John Smoltz

Former Atlanta Braves Pitcher & National Baseball Hall of Famer; MLB Network and Fox Analyst

Nicholas Sparks

International Bestselling Novelist & Screenwriter, Known for "The Notebook"

Al Letson

Peabody Award-Winning Radio Host, Spoken Word Artist, Playwright

Marty Makary, M.D.

Healthcare Futurist, Johns Hopkins Surgeon & Professor of Public Health