Tommy Caldwell & Kevin Jorgeson

Legendary Climbers of El Capitan

Diane Guerrero

Immigration Reform Activist & Actress Known for "Orange is the New Black" & "Jane The Virgin"

Tim Grover

CEO of Attack Athletics, Best-selling Author of "Relentless" and "Jump Attack"

Eric Thomas

Inspirational Speaker, Life Strategist & Author

Taya Kyle

Advocate for Military Veterans and Families; Widow of Former U.S. Navy SEAL Chris Kyle

Mike & Mike

Mike Golic & Mike Greenberg are known as the Co-Host of Mike and Mike in the Morning

Jenji Kohan

Creator, "Orange is the New Black"

Monica Lewinsky

Social Activist; Expert on Cyberbullying, Women's Issues & Reinvention; Contributing Editor to Vanity Fair

Monica Lewinsky 'more scared' of government than ever - New York ...

Dan Harris

Award-Winning ABC News Anchor & #1 New York Times Best-Selling Author

Former MythBusters Build Team: Tory Belleci, Kari Byron and Grant Imahara

MythBusters Build Team: Tory Belleci, Kari Byron and Grant Imahara

Tess Vigeland

Author, Veteran Journalist & CEO of Tess Vigeland Productions

Amy Robach

Co-Anchor of "20/20" & ABC News Correspondent for "Good Morning America;" Breast Cancer Survivor

Jon Steinberg

Founder & CEO of Cheddar; Former President & COO of Buzzfeed; Former CEO of Daily Mail.com in North America

Janet Mock

Author, Feminist, Transgender Rights Activist, TV Host & Founder of #GirlsLikeUs

Cecily Strong

Actress, Comedian, "Saturday Night Live" Cast Member & Former Co-Anchor of "Weekend Update"

Cecily Strong's Idris Elba Impersonation That Never Made It to SNL

Aaron Hurst

CEO of Imperative, Expert on the Science of Purpose at Work, Globally Recognized Social Entrepreneur & Author of "The Purpose Economy"

Victor W. Hwang

VP of Entrepreneurship at Kauffman Foundation; Co-author of "The Rainforest: The Secret to Building the Next Silicon Valley"

David Zinczenko

Former Vice President of Men's Health, Women's Health & Prevention; Retired Nutrition & Wellness Editor at ABC News

Maksim Chmerkovskiy

Professional Dancer, "Dancing with the Stars"

Holly Sonders

Journalist, Sportscaster Known for "Morning Drive"

Nicole Byer

Comedian, Actress & Writer

Reshma Saujani

Lawyer & Politician; Founder of Girls Who Code

Jason Collins

First Openly Gay Player In Major League Sports, Former NBA Player & Equality Advocate

Phil Donahue

Creator and Host of "Donahue," the Long-Running Talk Show

Liz Wiseman

President of The Wiseman Group & Bestselling Author of "Multipliers"

Ichak Adizes

Corporate Performance Expert & Authority on Managing Change

Sophia Bush

Actress, Humanitarian & Author

Ben Kaufman

Head of Product Labs, BuzzFeed, Founder, Quirky & Mophie

DeVon Franklin

Award-Winning Producer, New York Times Bestselling Author & Motivational Speaker

Cass Sunstein

Director of the Behavioral Economics & Public Policy Program at Harvard Law School; Former Administrator of the White House Office of Information & Regulatory Affairs