Daddy's Girl: Rose was this to her late father, George, and at the beginning of the first book she's still grieving very painfully for what appears to be his relatively recent loss. Over the course of the ensuing year, she grows to be this for Uncle Alec as well.
Wrong Genre Savvy: Charlie is described as acting like a melodramatic theatre character.
Alexander Mackenzie "Mac" Campbell
Berserk Button: Please, don't mock someone else's goals in front of him. Specially if this involves Charlie trying to not drink alcohol. When that one happened, Mac almost went berserk on Kitty's brother Alf.
Accidental Misnaming: Uncle Alec refers to her as "Ariadne Blish" at one point while talking to himself, although it's unclear whether this is Malicious Misnaming or if he actually thinks that is her name.