Fonzworth Bentley

Musician, Author and TV personality; MTV's "From G's to Gents"

Charlene Strong

Gay Rights Activist

Dr. Carl Hart

Professor of Psychology & Chair of Department of Psychology at Columbia University

Capitol Steps

Nationally Acclaimed Political Satire Troupe

Lisa Myers

Emmy Award-Winning Former Senior Investigative Correspondent for NBC News

Bill Bryson

Best-Selling Author Known for "A Short History of Nearly Everything" & "A Walk in the Woods"

Dan O'Brien

Olympic Gold Medalist & Decathlon Champion

Vilayanur Ramachandran

Neuroscientist; Director of the Center for Brain & Cognition, University of California, San Diego

Philip Zimbardo

Psychologist Known for the Notorious '1971 Stanford Prison Experiment;' Researcher of the Psychology of Heroism, Evilness and Time

Lou Waters

Aging Expert, Journalist & Former CNN Media Personality; Anchor of "Coming of Age"

Where Are They Now: Lou Waters

Daria Musk

Singer, Songwriter, and Google+ interactive Concert Innovator

Dom Sagolla

Co-Creator of Twitter; Author of "140 Characters"

Nancy Frates

CEO of Team Frate Train; Mother Behind the ALS Ice Bucket Challenge; Business Leader, Mentor & Performance Coach

Jeannette Walls

Best-Selling Author of "The Glass Castle," an Amazon "Top 10 Books of the Decade"

Lauren Cohan

Actress; Best Known as Maggie Greene on "The Walking Dead"

Ed Slott

Nationally Recognized IRA Distribution Expert, Professor, Television Personality & Best-Selling Author

Ed Slott, CPA | America's IRA Expert