* DoingItForTheArt: The UsefulNotes/WorldWarI biplanes in "Shadow of the Condor".
* FollowTheLeader: The main cast are iconic action/adventure characters although Jonny Quest's original show was designed as an adaptation and then a follow the leader of Jack Armstrong.
** Some elements of Jonny Quest would become elements other Hanna Barbera shows would FollowTheLeader on as well.
* RemakeCameo: In ''WesternAnimation/TomAndJerrySpyQuest'', the President is voiced by Tim Matheson, Jonny's 60s voice actor.
* TheOtherDarrin: As noted, Creator/DonMessick replaced John Stephenson as Dr. Quest.
* ScrewedByTheNetwork: The show swapped nights with ''WesternAnimation/TheFlintstones'' so the latter show wouldn't get thrashed in the ratings by ''Series/TheMunsters''.
* WhatCouldHaveBeen: The show was originally supposed to be a JackArmstrong. The story is that Hanna-Barbers could not or would not get the rights resulting in the concept having to be reworked.