Laura/X-23

As always in the X-Men shared universe, there are baddies who try to replicate mutant powers by manipulating the genetic code. In the comics, Laura is a clone of Wolverine. We don’t know her origin story in the movie. However, James Mangold says that she’s basically a miniature Wolverine, and this causes sparks to fly between her and Logan. Furthermore, one of the movie’s themes seems to be the father-daughter relationship. And since Mister Sinister exists in this universe (even if he doesn’t appear in Logan), we can assume that she is a clone in the movie, as well.

We actually see her creator (Zander Rice, played by Richard E. Grant) in this second trailer, after the first trailer revealed several scenes from her escape. And, as the first scene of the final trailer shows, she has no social skills – she wants to steal and doesn’t really know that what she’s doing is bad. This leads us to believe that she must have had help when she escaped.

And she’s ferocious – for example, when one of the evil minions goes after her, she comes out and throws his head at the feet of the other Reavers. The beginning of the scene is in the second trailer; the end remains unseen.

Which is great – if Wolverine has been rather tame so far, this movie will make up for all of the previous PG-13 flicks and set X-23 as a proper killing machine.

Also, as far as Laura is concerned, her knuckle wounds heal nicely – which means that the mutagen theory is wrong.