Discipline + Transformation.
From the United states Marine Corps to the Big Screen
Aaron Williamson’s path is one of relentless drive and reinvention. After proudly serving in the U.S. Marine Corps, he emerged with a mindset rooted in discipline and a passion for pushing limits. That same intensity launched a career that now spans elite fitness coaching, on-screen performance, and high-profile transformations for some of the biggest names in entertainment.
Where Fitness Meets Purpose.
Aaron’s influence goes far beyond physical training. Known for reshaping the physiques—and mindsets—of actors, athletes, and executives, he brings a unique authenticity to every role he plays, whether in the gym or on screen.
Beyond Hollywood, Aaron is deeply committed to giving back. He supports animal welfare through the SPCA, mentors troubled youth, and actively contributes to veteran-focused non-profits. His purpose is clear: to lead with strength, live with intention, and inspire others to rise to their potential—on every stage of life.
ABOUT
Learn about his military
background, transition into
acting, and evolution into a
transformation coach.
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ACTING CREDITS
Explore AARON'S IMDb-recognized
roles and projects with major
studios like Paramount & Sony.
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FITNESS PROGRAMS
From tactical athlete training to
Hollywood-ready body
transformations, Aaron’s coaching
speaks for itself.
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After training w/ Aaron for the summer, I was noticeably stronger, faster & slimmer. His confidence in his abilities brings a certain spirit that helped motivate me when I really didn’t feel like going to the gym. Aaron’s knowledge in health, fitness & the human body is unmatched, in my opinion. He’s well versed in training & supplementation to maximize the results of training. His goal is to get you in the shape you desire while keeping you as healthy as possible.
He’d always assess how I’m feeling before each training session to make sure we’d get the best training possible while working around previous injuries, aches & pains. He takes his craft very serious & I highly recommend him to anyone not only because he’s so well versed in what he does but because he understands our needs being in the film industry. It’s not easy to find someone like him.
— Anthony Katagas
"I never imagined when we started this program, how much I was going to be pushed to my limits. never imagined I was going to be able to do so many workouts and gain so much strength. Never imagined we would've reached our goal of losing 38 pounds and still going. Brother, I thank you for the sea of knowledge you provided and the tools you gave me to be better and healthier, physically and mentally. These tools will be useful for the rest of my life!"
Israel | Miami, FL
"90 days ago I was 72 pounds heavier and feeling the worst I've ever felt. I'm so grateful for Aaron's program and the support he gave me on a weekly basis. I can honestly say he changed my life in ways I could've never imagined. And I've never met a trainer, especially someone of his caliber, who cares so much about his clients."
Joseph P | London, UK
"Aaron Williamson is tops. I'm about as difficult as anyone to motivate, but that man has a way of convincing you that the couch isn't your best friend. He's insanely knowledgeable & great at the nuts & bolts. But he's also funny, engaging & a class act, & his ability to assess your needs & shape the program that's right for you is unmatched. He makes you make progress. He makes you better."
— James Gray
