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Justin Montello-Cullinan

Jr. Instructor- Acting Technique, Self Tapes, Voiceover, Career Counseling, & Intake Lesson Instructor, Virtual + In Person in NY

Born and raised in the Boston area, Justin Montello-Cullinan has a broad background in the art of acting. Since a young age he has been performing in theater and at the age of 14, entered the professional world after booking his first co-star role on Defending Jacob. Since then he has booked multiple short films, independent films, commercials, and more. He is based in New England and New York for television, film, voiceover, commercial, and print. He trains at The Prep with Sarah Baskin, Jessi Clayton, Brandon Salerno, and Theresa Pittius.

Justin's experiences working in the business have helped shape his coaching, teaching, and connections with his students. As a Casting Associate, he has worked alongside a professional Casting Director in NYC casting various projects. Formerly working at a bi-coastal talent agency, Justin was responsible for submitting actors on Breakdown Express, reviewing self tapes, managing and selecting headshots and media, editing actor profiles, assisting with the onboarding of new clients, selecting talent for potential meetings to gain representation, and more.

Justin started working at The Prep in February of 2022 as an intern. Then, as of 2024, Justin took the role as Executive Studio Manager at The Prep NY, where he helps manage marketing, social media, classes, promotions, communication with students and parents, and event planning. He coaches privately and in group formats virtually and in person in New York. His students can be seen and heard in many feature films, short films, TV episodes, Broadway National Tours, animated series, and more! Justin is so passionate about this industry, his students, and The Prep! 

Also, as host of Youth Industry Talks, he interviews and gives young people in the entertainment industry a platform to share their personal journeys, issues in the industry, advice, and more conversational style. 

Justin is currently enrolled at The New School of Performing Arts majoring in Dramatic Arts. 

Justin is proudly represented by Rebel Creative Group and Take 3 Talent.

https://justinmontellocullinan.com/

VALID CHILD PERFORMER SERVICES PERMIT

CPS PERMIT #: CPS-LR- 1001207679

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TESTIMONIALS

We want to take a moment to share our wonderful experience with Justin as Aidan's acting coach over the past six months. From the very first session, it was clear that Aidan and Justin clicked. Their connection has made a huge difference in Aidan's journey as an actor.


Justin is not just honest; he holds Aidan accountable in a way that really motivates him to improve. What sets Justin apart is how he makes everything fun and practical, breaking things down in a way a 13-year-old can easily understand. Aidan looks forward to every session because he’s learning so much without it feeling overwhelming.


Justin has also helped Aidan manage stressful times, especially when multiple self-tapes come in. He teaches Aidan how to stay organized and approach each project without feeling overwhelmed. Justin is incredibly efficient with the time they have, accomplishing so much in their sessions, even when time is short.


With Justin’s guidance, Aidan has learned how to study a scene and develop a character more deeply than ever before. Thanks to the workshops and one-on-one coaching, Aidan recently booked his very first short film, which has been such an exciting milestone for him!


What we love about Justin is his real, authentic approach. As an actor himself, he brings insights that resonate with Aidan and help him tackle his self-tapes with confidence. Plus, Justin is always there when Aidan needs help or advice, making him feel supported every step of the way.
 

We’re so grateful to have Justin as not only Aidan's acting coach but also as a mentor. We can’t wait to see how much Aidan continues to grow as an actor in the coming year. Thank you, Justin, for everything!

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- Rob and Rachel Glaz

We can’t recommend Justin highly enough! As newbies to the acting world, Justin has been an invaluable resource for our son, Ryan. From our very first session, Justin’s deep understanding of the industry and his expertise in handling neurodiverse children has shone brightly. He has adeptly used Ryan’s vivid imagination and unique strengths to enhance his acting skills, providing targeted individual technique sessions as well as engaging group activities that Ryan looks forward to every week.

Justin’s patience and personalized approach have not only helped Ryan develop as an actor but have also given him a newfound confidence. His comprehensive follow-ups, and wealth of information ensure that we, as parents, are always in the loop and well-informed about Ryan’s progress and what steps we should take next in his career. It’s a relief to have a mentor like Justin who genuinely cares about Ryan’s growth and is dedicated to nurturing his talents. We are excited to see what the future holds for Ryan at The Prep, all thanks to Justin’s exceptional guidance.

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- Melanie Stinson

I highly recommend Justin! He is understanding, always accommodating , constantly following up, keeping me up to date on her progress, and always working on new scenes. I’m so happy we gave it a shot. We have taken many different scene study classes from many different schools and I couldn’t be more pleased about our choice. We absolutely adore him! I’m so glad we decided to go with Justin Montello-Cullinan at The Prep. 

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- Fay Larson

Our son has been working with Justin for the last six months and we could not be happier with his coaching technique and insights. He is a wonderful motivator and teacher, and our son has been able to build his skills and confidence. Justin is professional, patient, and encouraging and our son always looks forward to his class. Justin has also been instrumental in helping us understand the industry, navigate the auditioning process, and how to move our son forward! 

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- Sarah and Michael Butler

Stefan is 6 yo and prior prepNJ/NY never took any acting classes. We have been paired with Justin  for on camera acting. Stefan had some understanding what is acting but with our weekly private online lessons now he fully understands and more important with Justin guidance is developing interest and passion for acting. Justin tailors his lessons age appropriate and lessons are always fun.  I have noticed progress in my son’s ability to understand scripts, act it out and use his imagination. We also took in person group lessons and as soon as Stefan came out he asked me if we are returning for more! Justin also helps us with self tape and I like the way he guides my son to comprehend the script/character on his own not just giving him answers. 

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- Irina Gueva

Our son Leonardo has been working with Justin over the past 5 months. When Leo is assigned a complicated script, we always reach out to Justin for 1 on 1 coaching. Justin conducts research on the writers and directors then brings that knowledge to the coaching sessions. This meaningful insight coupled with every piece of information that can be gained from the script, enables Justin and Leo to weave a character portrayal that has the greatest chance of landing successfully.  Leo has had other coaches over the years that were very accomplished, but Justin is the perfect coach for our son.  Justin is professional, kind, and has inspired Leo to keep developing as an actor. â€‹

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- Robert Zotti

My son has been working with Justin virtually and in-person at the Prep for over the past year in acting technique/scene study classes as well as private coaching. Justin is well organized. His classes are tons of fun, always positive and engaging.  My son always leaves a session with Justin feeling prepared and confident! 

Justin goes over and above just being present for class. He supports his students whether it is a follow up email to see how an audition went or attending his students' live performances. Justin is a great coach and I highly recommend taking his classes! 

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- Denise Riley

Our son Ethan has been taking acting classes and private lessons with Justin for over 6 months now and from the very first lesson he felt connected with Justin that helped him open up and learn more efficiently. Justin is a very encouraging coach and is able to successfully and positively communicate and teach Ethan at his level. He walks through each line with his professional suggestions while at the same time allowing Ethan to follow his instincts in creating and developing the character.

 Justin goes beyond classes and helps with advice on every aspect of how to become a great actor, from suggestions on how to set up the perfect self-recording area to always following up on Ethan’s auditions and feedbacks. He is a fantastic and dedicated acting coach and we can always count on him for the last minute or complicated self-tape. Not to mention that the very first self-tape with Justin helped Ethan to book his first lead role in the independent feature film.

Ethan always looks forward to lessons with Justin and we cannot be more happy to have such a great acting coach! 

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- James and Alexandra Fisher

As a new parent to the industry, Justin has been a great help explaining in detail how to get started. He spoke to my daughter and I about how to improve her resume, and supplied me with lots of information based on my questions and concerns. He also sent us a lot of follow up information after our session with reminders of what I need to do and provided instructor recommendations.

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I highly recommend meeting with Justin who need help getting started!

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- Robin J

My son James looks forward to each class and session with Justin. Justin is encouraging and warm while guiding him to his next level of acting. I'm especially grateful for an exercise he's taught James which helps him shake off challenging characters after an audition. Always cheering his students on, Justin is a great coach! 

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- Amanda S

My twins always love their time with Justin! He has helped them with acting technique, audition prep, and filming reels. He makes every class fun and positive. As a mom new to the industry, it’s such a comfort for me knowing he can help get us through anything that may come their way. So thankful to have Justin in our corner!

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- Jessica W

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