Tyra Banks

Host & Executive Producer, "Dancing With the Stars"; Model, TV Personality, Host of "America's Next Top Model"

Debbie Sterling

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

Sigourney Weaver

Golden Globe-Winning Actress & Environmentalist

Tavi Gevinson

Creator of Fashion Blog Style Rookie and Rookie Magazine; Actress and Singer in the Broadway Show "This Is Our Youth"

Ali Velshi

Chief Correspondent for MSNBC; Author of "Gimme My Money Back" and "Small Acts of Courage"

Ali Velshi explains activism, protest, media disinformation

Hank Green

#1 New York Times Best-Selling Author & CEO of Complexly

Alec Ross

Author of "The Industries of the Future," and Recent Senior Advisor for Innovation to Hilary Clinton

Brad Stone

Veteran Silicon Valley Journalist & Author of "The Everything Store: Jeff Bezos and the Age of Amazon"

Mark Burnett

CEO, One Three Media; Five time Emmy Award Winning Producer