Board Thread:The Flash discussions/@comment-9346948-20161019001452/@comment-27700324-20161020200635

Kagemamoru wrote: Kaestal wrote: Why not have a skeleton as the villain? No backstory, he's just a skeleton. And his Supergirl-earth counterpart could be Mr. Bones!

I don't think that is how it works. I always thought that Barry and his friends don't exist in Kara's world. Supergirl just has the adventures of characters in the Superman-mythos and Martian-mythos.