Jennifer Pharr Davis

Long-Distance Hiker & Author; Overall Record Holder on the Appalachian Trail & The First Woman to Set That Mark

Outdoor School: Hiking and Camping: The Definitive Interactive Nature Guide

Paul Deegan

Motivational and Leadership Expert, Everest Mountaineer and Award-Winning Author

Lene Gammelgaard

Bestselling Author, Leadership Trainer & Danish Adventurer; 35th Woman to Summit Everest

Mayim Bialik

Neuroscientist, Mental Health Advocate & Actress Known for "The Big Bang Theory"

Ray Zahab

Ultra-marathon Runner and Adventurer; Host, "The Project"; Author of "Running for My Life"

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Yossi Ghinsberg

Tech Entrepreneur & Author, Known for Having Been Stranded in A Remote Part of the Amazon & Having Inspired the Movie "Jungle"

Erin Brockovich

Consumer Advocate, Author, TV Host & Environmental Activist

Robyn Benincasa

World Champion Adventure Racer & Best-Selling Author

Sylvia Acevedo

Engineer, Rocket Scientist & Technology Leader; Inspirational Speaker; Corporate Director at Qualcomm; Former CEO of Girl Scouts USA

How Sylvia Acevedo Defied Barriers to Become Girl Scout CEO

Dr. Alison Thompson

Humanitarian & Author of The Third Wave

Claudia Effe

Trauma Psychotherapist, turned writer by the biggest refugee crisis in recent history. CEO of Change Now, Inc.

Julie Guthman

Author & Professor of Social Sciences at the University of California, Santa Cruz

Adam Driver

Actor Known for Playing Kylo Ren in "Star Wars" Films & Adam Sackler on HBO's "Girls"

Mia Wasikowska

Actress Known for Her Roles in "Alice In Wonderland" & "The Kids Are All Right"

Bindi Irwin

Wildlife Conservationist & Daughter of Steve Irwin; Season 21 Contestant on "Dancing With the Stars"

Christi Paul

Anchor for HLN's "Raising America," Author of "Love Isn't Supposed to Hurt"

Braam Malherbe

Extreme Adventurer, Conservationist, Youth Developer & Author

Annie Leonard

American Proponent of Sustainability and a Critic of Excessive Consumerism

Amanda Lindhout

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

JT O'Donnell

Founder & CEO of Work It Daily; HR & Recruiting Expert, Executive Coach

Porsha Williams

Star of "Porsha's Family Matters;" Former Cast Member on "Real Housewives of Atlanta;" Owner of GoNaked Hair

Cornelia Guest

Cornelia Guest is daughter of American fashion icon CZ Guest and polo champion Winston Frederick Churchill Guest, she's a New York socialite, author, businesswoman, and philanthropist.

Nancy Nguyen Liles

Hit-and-Run Survivor; Crowned 2011 Miss Corporate America; Life & Image Coach

Ellen MacArthur

Former Long-Distance Yachtswoman & Founder of the Ellen MacArthur Foundation

Lily Collins

Actress, Model & Author Best Known For "Emily in Paris"

Lily Collins - Vogue Scandinavia

Tara Moss

Best-Selling Author and Media Personality

Rick Tumlinson

One of the World's Top Space Visionaries; Founder of the Commercial Space Movement; Founding Trustee of the XPrize

Cookie Johnson

Philanthropist, Entrepreneur & Women's Health Advocate

Loree Draude

Naval Aviation Pioneer & Leadership Expert