Our staff are highly trained professionals with an average of over 15 years in the fitness industry. We understand that no two bodies are alike and we focus on what will best suit your individual needs. We employ a wide variety of training methods to help you lose weight, maximize muscle tone and burn fat.

Whatever your fitness goals, Bolder Fitness can help you reach them. We have a range of programs that will help you get there quickly and safely – and expert trainers who are here to make sure they get the most out of you. Who knows, you may even enjoy it!

Your training will be with one of our elite personal trainers who have over 15 years of experience in the field. Our trainers use the latest techniques in training and nutrition to optimize your results.


Some techniques our trainers employ:

  • Traditional weight training

  • Core/stability training

  • Pilates

  • Martial Arts

  • TRX


Cassian Sandeberg

Born in London, Cassian Sandeberg grew up playing sports, sparking a desire to study physical education. He attended Brunel University and graduated in 1992 with a BA honors degree in Biomechanics, physiology and sports psychology. He also studies martial arts and self defense.

After moving to Los Angeles later that year, Cassian worked as a personal trainer at Sports Club/LA and found that his background in physical education helped get fast and effective results with his clientele.

In 1995 Cassian opened Bolder Fitness, wanting his clients to get more personal service and thus better results away from the corporate gyms. After 24 years, Cassian has helped many people reach and maintain their health and fitness goals. He excels in understanding that each client has different needs and thus making them reach their full potential and look their very best.


Eva Barrington

Eva Barrington has been a certified fitness professional most of her adult life. Her first job teaching aerobics was at the age of 15 at the Hip Hop club in Anchorage, Alaska, the home of the infamous “Buns of Steel” (yes those!) Since then, she has trained at facilities in Alaska, Seattle, Hawaii, England, Japan and Southern California. As a pre-med student in college, she supported herself teaching aerobic classes and training clients.

A degree change to Theatre led Eva to use her skills as a fitness professional and dancer/choreographer in various entertainment venues around the world.  She landed in Los Angeles in 1998 and has trained and taught various cutting edge techniques/classes in some of the most well known facilities in LA. She has also fitness coached the Galaxy Alliance Girls Soccer Team and the UCLA girls gymnastics.  Her specialty is core or functional training and she has branded and teaches her own class called Hardcore at Gold’s Gym, Venice for many years.

Eva is certified by the American Counsel on Exercise, the National Academy of Sports Medicine, Mad Dogg Athletics and Spinning, Stott Pilates, Kranking, Gravity, Les Mills and is an ACPE certified nutritionist.

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Mallory Nicholas

Mallory Nicholas has the innate ability to be able to relate to each one of her clients and give them the specific tools to achieve their individual goals. She started working at her local YMCA in 2006, where she gained all her experience working with members as a Healthy Lifestyles Counselor, then getting her Personal Training certification through ISSA (International Sports Science Association), and is now a Certified Specialist in Exercise Therapy. With many continuing education credits under her belt and on her way to receiving more certifications, she is constantly learning new things about fitness. An all around fitness buff, she’s tried everything from yoga, Pilates reformer machines, dance to TRX and Muay Thai. She’s a big believer in experiencing something yourself before trying to teach it to someone else. 

When she’s not training clients, she’s working on her other passions. She’s a singer, songwriter, actor and voice actor and has been in the entertainment business since she was 7 years old. Starting with national commercials then booking her first series regular role on a Nickelodeon show that was executive produced by Whoopi Goldberg when she was 16. Some of her most recent work include: a recurring role on How To Get Away With Murder, Jane The Virgin, portraying the lovable and comical lead, Charlyne in HBO’s “F**ked Up,” which you can watch on HBO GO and HBO Now and booking a recurring voiceover role on Cartoon Network’s, DC Superhero Girls. 

Although Mallory is a fun, enthusiastic and amazing motivator, don’t be fooled, she can be one tough cookie and is more than capable of challenging your limits. With love, of course.