- The Cast Showoff: The storyline in Deceived by Flight where Lewis goes under cover in a cricket team was devised by Colin Dexter to let Kevin Whateley show off his cricket skills.
- Creator-Preferred Adaptation: Colin Dexter has admitted he prefers the TV series portrayal of the young, Geordie Sergeant Lewis to the elderly Welshman he used in the novels.
- The Danza: A retroactive example. Chief Superintendant Strange is never given a first name on this series, but Endeavour gives him the first name of James, after the actor who played him in this series, James Grout.
- Dawson Casting: There's a lot of it in "Last Seen Wearing" — in particular, then 23 year-old Elizabeth Hurley as a 16 year-old student.
- Playing Against Type:
Trivia / Inspector Morse