The cast of characters in the story of Reiki includes Reiki founder Dr. Mikao Usui, Dr. Chujiro Hayashi, and Mrs. Hawayo Takata. These figures are well known in the Reiki community. However, there are many more people who have followed in their footsteps and have made their own remarkable imprints in the sand, further expanding the Reiki system. In this chapter, you will learn about some of these people and what roles they have played in introducing so many of us to Reiki.