About Us

Richard Callahan, a native of Bedford, and his wife of 32 years Winnie Callahan have co-owned and operated Callahan’s Karate since 1994.

Mr. Callahan is a Seventh Degree Black Belt in American Kenpo. He studies under Ninth Degree Kenpo Master Eliud Sanchez of Vernon, CT.

With over 27 years of teaching experience, Mr. Callahan has literally helped thousands of students achieve success in martial arts, as well as help them make positive lifestyle changes through their training. Mr. Callahan is actively involved in teaching on a daily basis, six days a week, working with students of all ages and abilities.


Winnie Callahan is a Fifth Degree Black Belt in American Kenpo. She is also a Senior Instructor and has been teaching at all age levels for more than 23 years. She has extensive tournament competition experience from the 1990’s in both Kenpo forms and fighting. In addition to her role as an Instructor, Mrs. Callahan manages community outreach for Callahan’s, including special self-defense workshops and programs.

Martin Clements is a 5th Degree Black Belt in American Kenpo and a Senior instructor. He has been a full-time member of the Callahan’s team since 1997. As the primary Instructor for Mini and Little Dragons, Mr. Clements is known for his unparalleled patience while teaching young children. He also has an extraordinary ability to work with students of all age groups and those with special needs.

Jay Gonzalez (“Mr. G”) is a 5th Degree Black Belt in American Kenpo and Senior Instructor. He has been a full-time team member since 2000. Mr Gonzalez has a tremendous ability to inspire and connect with his students, bringing out the best in them. He encourages and inspires his students to strive for excellence but provides a great balance of hard work and fun in the classroom.

We pride ourselves on building a team of excellent Junior Instructors to support our full-time staff. These instructors, generally in the teen age group, are also current Callahan’s students and members of the Leadership team. Their role as instructor provides them with a great opportunity to emulate the principles of Callahan’s, and act as role models to their fellow students both in the classroom and in their community.