Ethan Zohn

Winner of "Survivor" Africa, 2x Cancer Survivor, Stem Cell Transplant Recipient, Social Entrepreneur, Philanthropist, Cancer Research Advocate, Former Pro Soccer Player, Sports Broadcaster & TV Personality

Glennon Doyle

Author, Activist & Founder of Together Rising

Lizzie Velasquez

Motivational Speaker; Author of "Lizzie Beautiful" & "Be Beautiful, Be You;" Once Labeled "The World's Ugliest Woman"

Raj Patel

Award-Winning Writer, Food Politics Activist, Filmmaker & Academic

Ralph Nader

Consumer Advocate, Lawyer & Author; Former Independent Presidential Candidate

Jessie Pavelka

Fitness Expert; Former Television Host on NBC’s "The Biggest Loser"

George P. Bush

Politician & Land Commissioner of Texas

Dick Costolo

Former CEO of Twitter and Co-Founder of Feedburner

Dean Karlan

Behavioral Economist, Social Entrepreneur & Author

Tom Ashbrook

Former Host of NPR's "On Point"

Dennis Kucinich

Fox News Contributor, Former Ohio US Representative and Two-Time Presidential Candidate

Neil Giuliano

Gay Rights Activist & President and CEO of Greater Pheonix Leadership

Ira Byock

Dartmouth-Hitchcock Medical Center

Glenn Roberts

Wheat and Rice Farmer; Owner of Anson Mills

Brian Hoffstein

Contributing Writer

Cody Adams

Managing Editor of The Floating University.

Jeffrey Israel

Author & Jewish Studies Professor at Williams College

Rye Barcott

Co-Founder & CEO of With Honor, Veteran and Author of "It Happened on the Way to War"

Alanis Morissette

Alt-Rock Angst Icon Known for "You Oughta Know" & "Ironic"

Paul Rieckhoff

Founder and Executive Director of Iraq and Afghanistan Veterans of America (IAVA); Author, "Chasing Ghosts: Failures and Facades in Iraq"

Tracy Anderson

Fitness Pioneer, Entrepreneur & Author, Founder of The Tracy Anderson Method

Tracy Anderson shares moves to work your whole body

Elton John

British Singer-Songwriter Known for "Rocket Man," "Tiny Dancer" & "Your Song;" Subject of 2019 Biopic "Rocketman"

John Zogby

Trendspotter & Leading Pollster

Spencer Wells

Geneticist, Anthropologist, Author, Entrepreneur, Adjunct professor at the University of Texas at Austin

Stephanie Coontz

Director of Research & Public Education for the Council on Contemporary Families; Marriage & Family Historian

Stephanie Coontz - 2020 Evergreen State College Commencement Address

Tiffany Shlain

Founder of The Webby Awards; Emmy-Nominated Filmmaker, Bestselling Author, Internet Pioneer & Futurist

Natasha Calis

Child actress known for her recurring role on the TV series "The Firm"

Louis Stack

Founder of Fitter International Inc.

Mike Mandel

Expert in the Art of Communication, Motivation & Influence

Richard St. John

Success Expert; Author of the Bestselling Book "The 8 Traits Successful People Have in Common: 8 To Be Great"