Short stories
- Creator Backlash: Chesterton once said he wrote some of the worst mysteries in the world in reference to a couple of these books.
- Money, Dear Boy: Chesterton pumped out many short Father Brown mysteries to make ends meet, not unlike Arthur Conan Doyle with the later Sherlock Holmes mysteries.
TV series
- Broken Base: Series 10 saw the replacement of three cast members: Sorcha Cusack (Mrs. McCarthy), Emer Kenny (Bunty) and Jack Deam (Inspector Mallory), were respectively succeeded by Claudie Blakley (Mrs. Devine), Ruby Ray-Martinwood (Brenda Palmer) and the returning Tom Chambers as the newly-promoted Chief Inspector Sullivan. Some were charmed by the new characters and delighted at the return of Sullivan. (Mallory had proven quite a divisive character amongst fans.) Others were irritated at the loss of three of the series mainstays all at once, and did not take to the new cast. Some even view Sullivan's re-appearance as a cheap attempt to lessen the blow. And a fair number of viewers regard the romance between Sullivan and Mrs. Devine as forced, unbelievable, and distressingly chemistry-free.
- Corpsing: In the TV show, Inspector Mallory (somehow) narrowly averts this when he remarks on learning that a Kembleford resident might have been abducted by aliens in "The Fire In The Sky".Mrs. McCarthy: He did not say "aliens"!
Mallory: That's a relief. Because I'd send Goodfellow to patrol the outer cosmos but his rocket boots are at the cobblers! - Playing Against Type:
- Wynford Collins, the antiques dealer in "The Tanganyika Green" was played by comedian Miles Jupp.
- And, although he's got more acting roles under his belt already (such as the Harry Potter series and Doctor Who), Mark Williams could also count as this.
- They Changed It, Now It Sucks!: The Series 10 cast turnovers were ill-received by many. The decision to change the broadcasts from daily to weekly has also provided annoyance.
- Uncredited Role: Owen Brenman as a radio news reader in "The Owl of Minerva".
