User blog comment:Master Sima Yi/Assassinews 12-05-'15 — Assassin's Creed: Syndicate has been revealed!/@comment-13471981-20150514095110

There's rumours flying about that Evie's voice actress is Jennifer Hale. Granted, the only sources seem to be Wikipedia-related (without citations), which anybody can edit :s I haven't actually played games with Hale in it, so I can't really judge if Evie sounds like her though.