James Doohan played warlock Walter Brocken in this episode. Later, he would play a more prominent miracle-worker: Chief Engineer Montgomery Scott on Star Trek. (edit) Merel is the only young witch.warlock introduced in the series other than Tabitha and Adam. Filmed on July 8, 1965, when Elizabeth was six months pregnant. (edit)

(someone knocks at the door)
Samantha: Ahm … that’s Gladys Kravitz.
Merle: Hey, can you see through walls? I can’t seem to get the hang of it.
Samantha: (laughs) No magic involved, Merle. I just know from the knock and the timing. (opens the door, Gladys is there, just as she said) Oh, hi, Mrs. Kravitz. What a surprise. (edit) Mrs. Brocken: He’s got a lot of studying to do.
Samantha: Oh, what are you working on now, Merle?
Merle: Elementary spells and incantations.
Mrs. Brocken: Now, you’re not to help him, Samantha.
Samantha: Don’t you worry, I won’t. (edit) (Glady and Abner observe the Stephens house)
Gladys: How about that? Kind of funny, people like that going into the Stephens house.
Abner: They look normal to me.
Gladys: That’s what’s funny about it. (edit)

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