Who are the characters of story Mike Krath High and Lifted Up?

You're likely referring to the book "Mike Krath and Lifted Up" by Brian K. Vaughan and Marcos Martín. However, there is no known book or story with that exact title.

It's possible there's a typo in the title or it's a lesser-known work. Could you please double-check the title or provide any more details about the story you're looking for?

If you can provide more information, I can help you find the characters!