Joker tells Ness: "That'd make quite an item for Winchell", referring to Walter Winchell, a newsman who also narrates The Untouchables (1959).
This is the fifth of eight appearances Oscar Beregi Jr. makes in the series and the fourth of seven times he plays the role of Joe Kulak. In his first appearance in Jack 'Legs' Diamond (1960), he plays the role of Oscar Benjamin.
This is the thirteenth of 20 appearances Frank Wilcox makes in this series, each time playing Federal DA Beecher Asbury. While still appearing in this series, he took on the recurring role of oilman John Brewster, a role he is perhaps best remembered for, in the hit TV sitcom The Beverly Hillbillies (1962).
This is the third of four appearances Bing Russell makes in the series, each time playing a different character. In all but one of them, and this appearance being the one, he plays an officer of the law. A prolific actor on his own right, he is perhaps best known as the father of Kurt Russell.
The name Fred Allen is mentioned in connection to something humorous, a relevant connection in that he was a well-known comedian in vaudeville, on radio, television, and in the movies.