...almost always seems to refer to the actors who appeared in the Depp/DS film as the "Dark Shadows actor" or the "Dark Shadows actress", like they've never done any other films. Not that that's a bad thing from our POV. I suppose someone on staff is a really big fan of the film.
Complete the phrase: Barnabas - "Julia, how could you have been so foolish as to let Maggie answer the vampire's summons?! Don't you realize that at this very minute Maggie and the vampire could be...?!"