User blog:NotCrazyZora/Characters whose origin isn't listed

There are lots of characters whose origin isn't listed, and I honestly have no idea what they're from.

I haven't read the comics yet, so I'm going entirely off of TWAU. If you know the origin of any of these characters, please put it below.
 * Grimble
 * Cryer
 * Dr. Swineheart
 * Holly & Lily
 * Vivian
 * Johann