Hire a THC Prevention Speaker for your Event

Please meet our Certified Johnny’s Ambassadors Trainers! These individuals are licensed teach Johnny’s Ambassadors curriculum on our behalf. Many of them offer additional talks in addition to our regular material. Please click on each one to read more and email [email protected] for pricing and questions about booking them for your next assembly, community event, or prevention conference.

Download our program brochure. Program fees are on the last page.

Download our speakers bureau flyer.


Laura Stack formed the nonprofit Johnny’s Ambassadors Youth THC Prevention after her 19-year-old son, Johnny, died by suicide after experiencing Cannabis-Induced Psychosis. Laura travels around the U.S. to educate teens, parents, and prevention professionals about the harms of youth THC use (marijuana, vapes, dabs, edibles) and the impact on addiction, adolescent brain development, mental illness, and suicidality. Laura gives 200 talks a year at middle and high schools and prevention conferences. Click here for more information.

Grace Davis, a graduate of the University of Northern Colorado, credits Johnny Stack as a pivotal influence in her decision to complete her degree and quit cannabis. Having experienced cannabis-induced psychosis, she believes her cannabis/THC use contributed to the progression of her bipolar disorder. Click here for more information.

James Henning served over 31 years with the Denver Police Department and retired after attaining the rank of Commander. Working his way from Patrol to Command Staff, James worked assignments in Training, Communications, Vice/Drug, and Administration, and he served as the Commander of the Investigative Support Division. Click here for more information.

Hannah Palmer is a 22-year-old dedicated drug-free advocate focused on promoting healthy lifestyles among young people. With a strong emphasis on the risks associated with marijuana use, she aims to foster a clear understanding of its effects and the benefits of living THC-free. Click here for more information.

Brandi Welch is 22 years old and a 2019 graduate of both Tulare Union High School and the Arts, Media, and Entertainment (AME) Academy. Brandi is a recovered Marijuana/THC user with a personal testimony of her own, who is willing to share her story with anyone who will listen. Click here for more information.