Alex Newell

Grammy Award-Winning Actor & Singer Known for "Glee"

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Amanda Lindhout

Executive Director of The Global Enrichment Foundation; Captivity Survivor, Inspirational Speaker & Author of "A House in the Sky"

Andrea Mitchell

Host of MSNBC’s "Andrea Mitchell Reports" & Chief Foreign Affairs Correspondent for NBC News

Andrea Mitchell - Celebrating 15 years of "Andrea Mitchell Reports"

Ann Bancroft

Pioneering Polar Explorer; Educator & Dyslexia Advocate; Activist for Women & Girls

Ashley Rhodes-Courter

International Child Welfare Advocate, Master of Social Work, Foster Parent & Author of the Best-Selling Memoir "Three Little Words"

Ben Rattray

Founder & Executive Chair of Change.org

Beth Stern

Television Personality, Actress, Model and Wife of Howard Stern

Cameron Sinclair

World-Class Visionary; Co-Founder of Architecture for Humanity

Chaz Bono

Transgender, LGBTQ Rights Advocate, Author, Speaker

Claire Diaz-Ortiz

Author, Speaker, Advisor to Startups & Social Enterprises; Former Leader of Social Innovation at Twitter

Clay Shirky

Expert on New Technology & Social Media, & How They Shape Culture; Professor & Distinguished Writer in Residence, NYU

Doc Hendley

Global Humanitarian, Clean Water Crusader, Top 10 CNN Hero, Sustainability Advocate

Hugh Evans

Humanitarian; Founder & CEO of Global Poverty Project

Irwin Redlener

Expert on Disaster Medicine

Jackson Galaxy

Host, "My Cat from Hell" & Author, "Cat Daddy: What the World's Most Incorrigible Cat Taught Me About Life, Love, and Coming Clean"

Jay Manuel

Former Judge on "America's Next Top Model", Host of Canada's "America's Next Top Model"

John Wood

Founder & Board Co-Chair of Room to Read; Former Microsoft Marketing Executive

Karen Tse

Human Rights Defender & Social Entrepreneur; Founder of International Bridges of Justice

Kathy Najimy

Award-Winning Actress & Activist