Lieutenant Misen appears again at WSP HQ in Pink Ice (1965) after Troy and Phones discover the ice was produced chemically, and at the briefing in An Echo of Danger (1964).
This episode was the 20th episode produced and the 38th broadcast.
This is the only Stingray episode in which Stingray itself doesn't appear, outside the opening and closing titles.
It is revealed Troy Tempest and George Phones Sheridan sleep in the same room, in separate beds.