Already introducing another character? Why not! This, right here, who you may believe to be a cat is in fact Fella. Just Fella. No real identity to them as they commonly shapeshift. But, as seen, they can stretch and basically do anything with their own body...

Including yours. They are true troublemaker yet for some reason hides in Crow's closet as a home of theirs. Crow is unaware of their presence even existing. In the spare time, they shapeshift around and cause mischief, usually turning the unexpecting eye into a tree or god forbid a road. They can't melt, crumble or transform someone forever, they at worse can make someone a pudge of slime or have truly unknown lengthy limbs.

They do speak, but its how they can cause someone to crumble due to their sonic-boom voice. They are made of goop so they 100% are flexible and you can mess with them as well.