This is the fourth of five appearances Cyril Delevanti makes in this series, each time playing a bit part as an attendant of some kind, flop house, men's room, newsstand, etc.
Adjusted for inflation, the $12 charge Viton demands for a bottle of champagne would equal approximately $275 in the year 2024.
This is the first of two appearances Barry Morse makes in the series, each time playing a different character. His second appearance occurs in Globe of Death (1963), which was originally broadcast the same year he became well known to 1960s TV audiences for his recurring role as Lt. Philip Gerard in the TV crime drama The Fugitive (1963).
This is the second of eight appearances Grant Richards makes in the series. For most of these appearances, he takes on the persona of different characters. In three of his appearances, he plays the hoodlum Frankie Resko.
This is the second of five appearances Michael Constantine makes in the series, each time appearing as a different character.