* [[Hey ItsIt's That Guy]]: Arielle Kebbel, who plays Catherine, previously appeared as Allison Flemming in ''[[The Grudge]] 2'', and also starred in ''[[A Tale of Two Sisters|The Uninvited]]''. Shelby is played by Myanna Buring, who played Sam in ''[[The Descent (Film)|The Descent]]''. [[Katie McGrath|Katie McGrath]] (Harriet) is Morgana in ''[[Merlin]]''.