The document provides character summaries of key characters in the novel "The Invisible Man". It describes Griffin as the invisible man who became interested in invisibility after studying refractive indexes. He successfully makes himself invisible but then turns to a life of crime to survive. It also summarizes Thomas Marvel as the first person Griffin tries to use as an accomplice. Dr. Kemp is introduced as a former associate of Griffin's who is not willing to help with his schemes. Other characters from the small village like the Halls, Teddy Henfrey, and Fearenside are mentioned who notice strange events and start rumors about the invisible man. The document concludes by briefly introducing other characters like Cuss, the Bunt