I have several:

Luna: My "daughter". She is young, about 7 years old, with black hair and the cutest smile in the world. My most frequent dream character... she is now dead.

Eternity: My first dream character from my very first lucid dream. He is usually garbed in darkness and has a hazy image; I once saw him dressed as a monk. I rarely see him but I never forget him.

Bloodshed: My nightmare character whom violated my lucid dreams with terror. Usually wearing, thick, layered, bright silver armor with a skull-like helmet. Often bleeds from any orifice for no reason. I believe he is now dead from a lucid battle (Thread Here).

Kyla: A friend who I always have a hard time talking to because of language problems.. I am not sure what language she actually speaks. She is a teenager, long red hair, loves to play tennis.. I cannot recall last time I saw her..

I am sure I have more.. but I cannot recall them all right now.. these are the biggest ones anyhow..