Larry Spinner grew up in a small city in Massachusetts and attended the only public high school in town, where he experienced his first taste of theater. He also attained the rank of Eagle Scout, at 16, and became active in his community. After college, he practiced pharmacy in Rhode Island before moving to California, where he continued practicing pharmacy until he injured his back. While recovering, he earned a Master of Arts degree in theater directing and acting. His thesis was a guide for future students in directing and it was recommended reading by the faculty for new directing candidates. After earning his degree, while trying to become a star, he had several day-jobs, including substitute teaching. That led him to becoming a fully credentialed teacher and eventually a marine biology teacher.