Our Staff

Dylan Billiodeaux, M.Ed

Dylan strives to provide students at TGS with a rigorous and relevant science curriculum, giving students opportunities to engage in authentic scientific inquiry and build 21st-century skills.

Mary Kay Braccio, Ph.D., NCSP

Throughout her career, Mary Kay has been dedicated to bringing together the best services and instruction for students so they have the opportunity to grow to their fullest potential.

Leslie Levinson, M.P.A.

As a financial manager, Leslie rules the business office, assuring the smooth flow of funds in and out of Temple Grandin School. She has 30 years of experience working in...

Lea Anne Paskvalich, B.A.

As Director of Admissions & Public Relations, Lea Anne brings over 16 years of experience working and volunteering in the field of autism and education. This experience allows her to...

Ryan Pearse, M.Ed

Since 2001, Ryan has taught middle and high school students in a variety of charter, private, and special education settings. Ryan brings skills in curriculum development and differentiation, and a...

Sean Rothermel, B.A.

Sean has a genuine passion for teaching, and in particular for helping students with ASD grow and mature as learners. At TGS, he gets to put his unique blend of...

Maura Seidel, B.S., RBT

Maura has worked with individuals with learning and developmental disabilities in Colorado for eight years. She has worked with mild to severe children on the autism spectrum between the ages...

Nicole Stutte, M.S.W.

Nicole believes in leading students on creative ventures that increase their confidence and tolerance, and develop their ability to persevere through interesting challenges and group work.

Amy Thrasher, M.A., CCC-SLP

As clinical faculty in the Department of Speech, Language, Hearing Science at the University of Colorado Boulder, Amy’s focus has been early childhood communication development, with a particular interest in...

Jennifer Wilger, M.A.

As Executive Director, Jennifer guides TGS’ collaboration with community partners for research, current program planning, and future organizational development.

Board of Directors

Jason M. Lynch – Board Chair
B.A. (Hon.), Political Science, Columbia College, Columbia University
J.D., Columbia Law School

Jason is a partner in the Trial Group at the Denver law firm Davis Graham & Stubbs LLP, where his practice focuses on business and securities litigation. He also is active in pro bono matters that seek broad social or community impact. Jason lives in Louisville with his wife and two children, one of whom is a student at TGS.

David Millage – Board Member

David is the Vice President of Education at Boulder robotics maker Sphero Inc. At Sphero, David works with a team of technologists and teachers to bring robotic toys to life through play and creative expression.  Sphero’s robots are used in thousands of schools worldwide to help teach kids skills that range from problem solving to programming.  David lives in Arvada with his wife Katy and three boys Makai, Murphy, Munro and their dog Ernie.

Sarah Treharne – Board Member
M.A., Speech Language Pathology, University of CO

Sarah serves as a bilingual speech-language pathologist for Rocky Mountain Autism Center. In addition to her SLP credentials, she holds a B.A. from Virginia Tech, and an M.A. from Indiana University. After completing a Fulbright Grant in Uruguay and practicing early intervention in Virginia, Sarah settled down in Wash Park with her husband Andy and their dog Buster. With the birth of her daughter in August, 2014, she has recently added parenthood to her distinguished list of accomplishments!



Karen Williams – Board Member
Masters of Nonprofit Management, Regis University
B.S. Occupational Therapy, Colorado State University

Karen is the Associate Clinical Manager of outpatient Occupational and Physical Therapy services at Children’s Hospital Colorado Anschutz Medical Campus. Her areas of passion include multidisciplinary evaluation and treatment of children with Autism Spectrum Disorder. She is also very interested in the growth and development of nonprofit organizations. Karen lives in Denver with her family.

Advisory Board

David Hazen, M.A.
Education Advisor

Co-founder, Temple Grandin School

Former assistant principal, Peak-to-Peak K-12 Charter School

Brian Watson
Business Advisor

VP, Creative Director

Cactus Marketing, Denver, CO

Dennis Castle
Business Advisor


Millenicom, Inc., Portland, OR

Susan Hepburn, Ph.D
ASD Advisor

Director of Research

JFK Partners

Marcy Willard, Ph.D
ASD Advisor

School Psychologist

Brian Wolff, Ph.D
ASD Advisor


Wolff Child Psychology

Kathryn Stewart, Ph.D
Education Advisor


Orion Academy

Terry Gold

Business Advisor

Techstars, Adelaide