Including, but not limited to:
Sun, Moon, Eclipse, Lunar, Bloodmoon, Killcode, Earth, Solar, Ruin Eclipse, Forkface, Creator, Monty.
There are mentions of the other characters in their descriptions, but only the above mentioned characters have full descriptions. If any other characters enter the chat, I can't promise they will be accurate.
DISCLAIMER: I take most of my information from their wiki pages which doesn't include all of the information, meaning certain aspects may be missing.