In this episode it's disclosed that Geoffrey Butler's middle name is Barbara.
On the wall beside the pool house, you can see 2 picture holders hanging. On the left picture holder, the bottom left picture is the Platinum First Edition of the comic book titled Static, a Milestone/DC teenage character who could control electricity, and one of the few black superheroes ever.
Will: Geoffrey doesn't fall for anything.
(Fredrick knocks at the back door and Geoffrey answers it)
Fredrick: Are you Geoffrey?
Geoffrey: I am.
Fredrick: Than you must be my father.
Nicky: He fell for that.
International Episode Titles:
Czech Republic - Návštěva ze Starého světa (Visit from the Old World)
Will says that Fredrick has the same interests as Miss July. This is an allusion to the magazine, Playboy.
Philip tells Hilary that her story is a riches-to-riches story. This is an allusion to the term Rags to Riches. The common example is Horatio Alger Jr., a fictional character. An actual person who went from rags to riches is Abraham Lincoln. In both cases, the person went from nothing to something substantial.
The title of this episode is taken from the phrase The Butler Did It from the Milton Bradley board game Clue.