About Our Trainers

Meet The Off Leash K9 Team

Krystal Sprouse - Trainer

Krystal is a graduate of Winthrop University with a degree in Psychology and minor in Business. She also is obtaining her Masters of Business from Limestone University. 

She has always loved dogs and started working with dogs from an early age. During college she volunteered at a local rescue and provide play therapy for the dogs. 

Krystal is passionate about allowing owners to enjoy their dogs, and understand why they think they way they do, and is excited to continue her education. 

In her spare time loves to camp, hike, travel, and spend time with family and friends.

trainer Krystal Sprouse

Charles Fowler - Trainer

Charlie grew up on a farm in Florida where he helped his family raise goats, chickens and pigs. Dogs were always a part of his life, but it wasn’t until he was a young teenager when he found a Border Collie puppy running the farm with no ID tag, the typical “can we keep him” from a young boy to his parents is all it took to make him part of the family.

This is the first dog Charlie began to train as a hobby. The hobby grew into a passion and years later OLK9 training, helped turn a passion into a career!

Alyssa Sinicropi - Trainer

Alyssa is a dedicated dog trainer who is passionate about enhancing the connection between pet owners and their canine companions. Leveraging her background in psychology, she creates a secure and joyful environment that caters to the unique needs and behaviors of each dog. With years of hands-on experience, she has effectively worked with a diverse range of dogs, including those exhibiting reactive or aggressive tendencies, providing expert behavioral training.

Alyssa takes great pride in her accomplishments, including being the recipient of the prestigious Richard M. Uray Service Project of the Year – Radio STAR (SCBA) Award for her outstanding contributions to the promotion of shelter dog adoption through the program “Wet Nose Wednesday” on WSPA-FM.

Ensuring the well-being of your dog is Alyssa’s foremost commitment, and she is dedicated to fostering a harmonious and fulfilling bond between you and your furry companion.

Alyssa Sinicropi

Dan Wallen - Owner

Dan is the owner of Off Leash K9 Training, Greenville, SC. He graduated from Marshall University with an undergraduate in Business Administration.

Dan began his experience with Off Leash K9 Training as a client in 2009. 

After trying various trainers for his German Shepherds (Maximus and Athena), he was still not happy with the results and began to attend training sessions with Nick White at the Off Leash K9 Training headquarters in Woodbridge, Virginia.

Dan Wallen

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About Off Leash K9 Training

Dog Trainers that Are Recognized Around The World!

Nick White, Founder Off Leash K9 Training
Photo: A&E

Nick White is the Owner and Founder of Off Leash K9 Training.  Nick is a former US Marine and former US Secret Service. He currently has over 130+ dog training locations throughout the United States.

Nick is globally recognized as being one of the top dog trainers in the world.  He has 2 official world records in off leash obedience, named on Wikipedia as one of the top 20 dog trainers in the world, recently named top 10 trainer in the world by bestdogtrainers.org, has been featured in many magazines and shows, and he is regularly requested by the top celebrities and athletes! He has been called upon by people such as actor Ryan Reynolds, WWE’s John Cena, MLB All Star Max Scherzer, UFC World Champion Jon “Bones” Jones, and many more!

You can visit our YouTube Channel and watch over 1500+ before/after videos of Nick and his team’s work!  Off Leash K9 Training has more documented videos than any dog training business in the entire world!