Main characters in "The Telltale Heart" by Edgar Allen Poe (sorry if i have the author name wrong)?

i need it for a project, and it will be embaring to use pronouns, so PLEASE tell me the names (if there is any) thanks =], first person to get tell me the old guy's name and the narrartor's name gets 10 pts. If there is no names, i will check other answers to see if you are correct thanks, please answer soon!!!!!!!!!!!!!!! =]