This is the second of three appearances Jack Warden makes in the series. In each appearance, he plays a different role. His other appearances occur in The George 'Bugs' Moran Story (1959) and The Otto Frick Story (1960).
This is the first of only two appearances Madlyn Rhue makes in this series, each time appearing as a different character. Her second and final appearance occurs in The Tommy Karpeles Story (1960) from season two. She is perhaps best remembered from the TV sci-fi series Star Trek (1966) as the romantic interest of Ricardo Montalban's Khan.
Two years after the original broadcast of this episode, Madlyn Rhue and Jack Warden would again appear together in the feature-length movie Escape from Zahrain (1962).
This is the first of two appearances Virginia Christine makes in the series, each time playing a different character. She is best remembered to TV audiences in the 1960s, '70s, and '80s for her role as coffee-making expert Mrs. Olsen in the "Mountain Grown" Folger's Coffee commercials. Her other appearance in The Untouchables (1959) occurs in The Spoiler (1963) from season four.
This is the second of six appearances Nehemiah Persoff makes in the series and one of three appearances in which he does not appear as Jake Guzik.