This is the first of five appearances Rodolfo Hoyos Jr. makes in the series and the first of seven appearances he makes on screen with David Janssen, the last two appearances occurring in Operation: Deadhead (1971) and Elegy for a Cop (1975), respectively.
This is the second of five appearances Bill Zuckert makes in the series, each time playing a different character.
This is the second of six appearances Jason Wingreen makes in the series, each time playing a different character.