|Broadcast date||9 January 2012|
|Written by||Toby Whithouse|
|Cast|| Hal Yorke — Damien Molony|
Hal's Prequel is a prequel about Hal Yorke that was shown before the beginning of the fourth series.
It's 1955. The werewolf Leo is forced to fight against humans. He has already killed five humans when the vampire Hal Yorke enters the room. Leo tells Hal that it is the last time that he has killed humans and that the next times he would let the human kill him before he turns into a werewolf. Hal however also does not want to kill anymore. Leo suggests that they could support each other.