- Actor-Inspired Heroism: Despite having previously said he didn't want to play cops again after The Sweeney, John Thaw agreed to take the title role in this series on condition that Morse's Chivalrous Pervert tendencies in the books were dropped for the TV series. As a result they were also considerably played down in the subsequent novels.
- Actor-Inspired Element: Like Morse, John Thaw was a fan of Classical Music.
- 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's Favorite Episode: John Thaw's favourite episodes were "The Dead of Jericho", "Masonic Mysteries" and "Promised Land".
- 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:
- When the series first started airing, people were surprised that how different Morse was from John Thaw's previous portrayal of another police officer, Inspector Jack Regan in The Sweeney.
- Patrick Troughton as a peeping tom in "The Dead of Jericho".
- Geoffrey Palmer as the very nasty Matthew Copley-Barnes, Master of Beaufort College in "The Infernal Serpent".
- Richard Briers as the scheming, immoral Sir Clixby Bream, Master of Lonsdale College in "Death is Now My Neighbour".
- Perry Fenwick, who is best known for playing Memetic Loser Billy Mitchell in EastEnders, has a brief appearance playing a Loan Shark who beats up one of the suspects in "Last Bus to Woodstock".
- Referenced by...: Viz has a parody called "John Thor as Inspector Norse" in which Morse acts like a Viking god while trying to solve murders.
- Written-In Infirmity: Morse has a slight limp in some episodes. This is a result of a childhood incident where John Thaw broke his foot while running to catch a school bus.
Trivia / Inspector Morse