Nancy Costikyan

Director of Work/Life & Teaching Associate in Psychiatry at Harvard University

Shane Ennover

Personal Trainer at ConBody; Founder of Addicts Athletics

Michael Botticelli

Executive Director of the Grayken Center for Addiction at Boston Medical Center

Tom Stranger

Co-author, Landscape Gardener

Marty Angelo

Minister/author to prisons, rehabs & troubled celebrities.

Gabrielle Glaser

Author, Award-winning Journalist

Sarah Allen Benton, M.S., LMHC, LPC

Licensed Mental Health Counselor Specializing in Adolescent/Young Adult Addiction; Author of "Understanding the High-Functioning Alcoholic"

Danny Pintauro

Actor best known as a child star on "Who’s the Boss?"; HIV Activist; Beacon of Light Tour

Dennis Kelly

Author, Peak Performance Master Trainer, Personal Growth Expert

Rebekah Gregory

Boston Marathon Bombing Survivor & Founder of Rebekah's Angels

Boston bombing survivor Rebekah Gregory writes note to younger self

Richard Cabral

Emmy-Nominated Actor Known for "American Crime," Storyteller & Recovery Advocate

Bessel van der Kolk

Psychiatrist & Expert in PTSD

Tess Holliday

Plus-Size Model, Makeup Artist, Body Positive Activist & Blogger

Blake Leeper

Paralympian, World Record Holder & Motivational Speaker

Tony Hoffman

Pro BMX Competitor & Addiction Recovery Advocate; Owner of pH Wellness Drug & Alcohol Treatment Facility

Utkarsh Ambudkar

Actor; Best Known for "Pitch Perfect" & "The Mindy Project"

Jessie Pavelka

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

Johnny Manziel

Former NFL Quarterback Drafted by the Cleveland Browns; Mental Health & Substance Use Awareness Advocate

Chiara de Blasio

First Daughter of New York City, Social Justice Advocate, Activist, Substance Abuse Survivor

Victoria Arlen

Survivor, ESPN & Ninja Warrior Host; Gold Medalist, Author & Dancing With The Stars Contestant

Jerry Avorn

Professor of Medicine at Harvard Medical School; Studies the Intended & Adverse Effects of Prescription Drugs

Tyler Lepley

Star of Tyler Perry's "The Haves and Have Nots" on OWN

Eric Harr

Founder & CEO of Make a Stand, Inc.

Will Dean

CEO of Immersive Gamebox, Co-Founder & Former CEO of Tough Mudder

Elaine LaLanne

Wife of Jack LaLanne, Health and Fitness Speaker

Kevin Breel

Stand Up Comic & Mental Health Activist

Michael Elliot

African-American Screenwriter of Award-winning Urban Culture Film; CEO of Michael Elliott Media; Founder of Krush Magazine

Courtney Nichols Gould

Biodiversity & Ocean Conservation; Co-Founder of NewAtlantis; Co-Founder & Co-CEO of SmartyPants Inc.

Don Mann

Former Navy SEAL Team SIX Commando, Renowned Athlete & Trainer, NY Times Best-Selling Author

Gary Null

Authority on Health, Nutrition, Alternative Medicine, Anti-aging Medicine, Self Empowerment and Social Issues.