Carl Williams writes, "Character foreshadowing is simply an actor playing a role in one show and then in another show playing another character that is eerily similar but officially unrelated. The first actor to be featured is Mark Sheppard of Supernatural fame. On this show about the ethereal world we have enjoyed many seasons of Mark Sheppard playing Fergus Roderick MacLeod, also known as Crowley/The King of Hell. As the King of Hell, Crowley has shown an acute attention to fire and regeneration of his human vessel as needed throughout the ongoing Supernatural television series. Mark Sheppard has played this part before though, way back in 1993 when he took on two FBI agents- one of which wanted to believe."