This girl is Amy Pond, she's a kitsune who is probably going to end up really sick soon because she doesn't actually want to kill people or tell anyone what she is. Sammy isn't there to help her either because he's the only one who knows and she actually likes.
There's Lyssa, who folk might recall. Crazy and misses her husband.
And Kaylee, who might look like Amy but best not to mix them up lol