User blog comment:Oknight/Artemis, Cheshire = sisters pretty much confirmed/@comment-173.66.189.214-20110914235012/@comment-64.247.101.183-20110928194906

Cheshire is likely Artemis' sister, and Cheshire was revealed to be 19, so she is older than Artemis. As for the evidence pointing to Cheshire as Artemis' sister there are several clues: Cheshire knows Artemis' real identity, they look alike, Cheshire's voice actress also voices Artemis' mother and it was revealed in an interview that the same voice actress voices Cheshire's mother. Artemis was never half-Vietnamese in the comics, but Cheshire was.