Those characters that either only exist to influence the story but aren't important enough to get a whole design, the characters you have a bio for but can't get a design for, etc. They're interesting to me. 

Basically, characters with no ref sheets, no art at all, etc. If you're planning to get them designed, that's cool too.

I'm uploading many examples of these before my motivation boost dies off. So far I have this skinny dragon guy with a free clipart icon that was one of the most primal beings of his world, and could make all other dragons bow down to him due to sheer royalty. He waged war with humans for a few thousand years before a peace agreement was made, then basically got killed by a child who also has no design. Since basically his only purpose was to make "royals" in my world possible and show the early relations between humans/dragons, I probably won't get him a design. Especially cause I'm broke. But, I mean, I kinda do want to get him a design.

 Delirious loitering

delirious, as well as the other characters in his story, have no set design. they're gods, so they don't have a visible body, only the interpretations of what people think they'd look like. 

 a anja caida ChanteRyuutai

One day I'll properly design her

damascus

I know exactly what I want him to look like! I just can't get it out on paper.