In "Castle's" Disney princess-themed episode ("Once Upon a Crime"), Meghan Markle plays Charlotte Boyd, who — dressed in a Sleeping Beauty costume — is initially found drugged and unconscious, presumed to be a victim.

However, Charlotte is later revealed to be the culprit of three murders — making sure two of her victims wore the same costumes they had at the fairy-tale rave they attended years earlier.

https://ew.com/meghan-markle-acting-career-11782821