Noel Harrison, who plays Mark Slate, appears in the opening credits however he is not in this episode. Actor Robert Vaughn partners April, re-creating his Man From UNCLE role Napoleon Solo.
The passwords used when April and Solo visit the Fortune Teller are, 'Gather ye rosebuds while ye may, Old Time is still a-flying: And this same flower that lives today tomorrow will be dying.' These are lines from Robert Herrick's poem To the Virgins, to make much of Time.
Mother Muffin says to Solo, 'Now cracks a noble heart. Good night, sweet prince,
And flights of angels sing thee to thy rest.' This is from Shakespeare's play Hamlet, Act 5 Scene 2.
Mother Muffin's pet is a British Bulldog.
April: I had no idea our communication system was on a two party line.
Mother Muffin: Why, of course you didn't you retarded little sparrow you.
Mother Muffin: (On Maude's inability to speak) Her language was something shocking until I had to wash her mouth out with sulphuric acid.
Aprli: Sulphuric acid?
Mother Muffin: Oh, I tried soap and water, but it had no affect.
Waverly: Please do be careful.
Solo: Thank you, sir.
Waverly: With all the deaths we've had in Section One lately, insurance rates have risen tremendously.