Need some help with character images

[19chickens]

So I'm making a map (maybe for fun, maybe seriously) and want a character image from the game, specifically the Loki Hive.  However, I don't particularly want said character to be called the Loki Hive-I'd like it to be called, say ? ? ? and have another one with the same icon but as [CHARNAME].  Does anyone know hoe I'd do this?  For the two different names I expect that I could use two custom characters, but how do I extract the character icons to use in said custom characters?