I'm currently in a literature class on the works of Samuel Johnson and James Boswell (really loving both authors), and Johnson has a knack for assigning memorable names to characters. Some of the "writers" of letters to his periodical(s) have interesting names like Mirella, Tranquilla, etc. (usually symbolize the subject matter).
The other main character in "Rasselas" besides the title character, Imlac, and Nekayah, is Nekayah's attendant Pekuah - whose story arc is the most interesting, imo (she gets kidnapped), but whose name I'm not feeling. :-)