This marks the only episode in which Sgt. Velie's wife appears.
Barbara Rush would return in The Adventure of the Sinister Scenario.
Herb Edelman would return in The Adventure of the Hard-Hearted Huckster.
Joan Collins is best known to TV viewers for her role as vixen Alexis Carrington on Dynasty.
David Doyle is best known as sidekick Bosley on Charlie's Angels.
Arch Johnson would return in The Adventure of the Comic Book Crusader and The Adventure of Caesar's Last Sleep.
Thayer David should be familiar to fans of the gothic 1966-71 ABC soap Dark Shadows. He played a variety of roles on that series.
Ray Walston's best known TV role is that of Martin O'Hara in My Favorite Martian.
Velie: Don't worry about Ellery, Inspector. I'm sure he's on his way.
Inspector Queen: Yeah, like I was sure he'd made these reservations. I had to tip the headwaiter ten bucks for this table.
Mrs. Velie: I haven't danced like this in years.
Inspector Queen: (trips) Neither have I, dear lady.
Lady Frawley: Well, I never!
Halliday: Oh, but you have, my dear.
Becker: I'm going to the bar to get a stiff drink. I may need quite a few this evening.
Velie: Madge is really light on her feet.
Inspector Queen: On hers--yes.
Lady Frawley: (to Emma) Where were you , Miss Goody Two Shoes?
Lady Frawley: We ought to sue you for false arrest.
Inspector Queen: No one is arrested.
Kemmelman: New Year's Eve is always bad for me and Ethel. Who wants to invite an undertaker to a party?
Ellery: (to cabbie) If I don't get to 124 West End Avenue there's liable to be two murders tonight.
Velie: Any luck, Inspector?
Inspector Queen: It's narrowing down.
Velie: To whom?
Inspector Queen: Everyone in that room.
Kitty: Happy 1947, Ellery Queen.
Ellery: Happy 1947, Kitty McBride.