Monroe mentions that he doesn't understand why zombies are appearing in Portland because the only "voodoo" in Portland is "voodoo doughnuts." He is referring to a real Portland doughnut shop called Voodoo Doughnuts. Additional trivia: the owners of the Voodoo Doughnut shop say that "doughnut" is spelled the way it is because their doughnuts are made from "dough," not "do."
Opens with the quote, "And flights of angels sing thee to thy rest.", from Shakespeare's play "Hamlet." The line immediately follows after "good night, sweet prince," from which the episode title is derived.
On one of the containers, there is a number '2663' which indicates the series and episode number. 2 = Season 2, 663 = 66 divided by 3 = 22, therefore it is Season 2 Episode 22