Ahhhh, tiny version, since you've already got the interdimensional travel bit. We're all from different source materials, many of which are available in other worlds. They can be different versions of the same peeerson, just with world differences. Example: there are seven of me here, but I'm the only female and my whole world pretty much is genderswapped from the rest.
You're in comic books, though! And I've read them aaaaaall.