The surrogate mother and creator of X-23. It was recently revealed that she is X-23's biological mother due to her healing factor using some of Sarah's DNA to repair her embryonic cells.

Dr. Sarah Kinney

The surrogate mother and creator of X-23. It was recently revealed that she is X-23's biological mother due to her healing factor using some of Sarah's DNA to repair her embryonic cells.

All data from the awesome folks at Marvel.