
Trivia: Lorraine Toussaint is only 9 years older than Morris Chestnut, who plays her son.

The Crab with the Golden Claws: Part 1 - S1-E1
Trivia: When Kuraki attempts to put the letter in Tintin's mail box before getting ambushed, the mailbox next to Tintin's is labelled Herge, the creator of Tintin. (00:05:40)

Episode #1.6 - S1-E6
Trivia: In the park where PS Budd is surrounded by armed tactical response officers, a careful observer would notice that the brand of ear protection devices the officers are wearing are Z-TAC, an airsoft brand.

Trivia: According to the credits, this episode was written by a "James McAteer". However,"James McAteer" is actually a pseudonym for well-known TV scriptwriter P J Hammond (who, amongst many other things, created and wrote the strange sci-fi series "Sapphire and Steel"). Apparently Hammond did not care for certain "alterations" made to his script (rewrites by the Series' creator Brian Clemens) and asked that his name be removed from it.

Trivia: In the flashback scene at the beginning of Episode 4, the young Stavros Milos finds a case of money buried in the snow, next to a fence on the road where his car runs out of gas. This is the same case that Carl Showalter buried there in the 1996 Fargo movie. It was the ransom money for Jerry Lungegard's wife. Stavros apparently used it to start his grocery business.

The Scorn of the Star Sapphire! - S3-E5
Trivia: After freeing Miss Taylor from the grip of Star Sapphire, Green Lantern encases her in a green energy box and flies her away. The box is shaped almost exactly like a shuttle craft from Star Trek. (00:15:50)

Trivia: Bradley Walsh had never seen the original American series before being offered his role.

Crisis on Infinite Earths: Part Two - S1-E9
Trivia: The version of Batman played by famous Bat-voice Kevin Conroy is a darker version of that from the graphic novel The Dark Knight Returns. The line "the world only makes sense when you force it to" is a version of a line from that comic (also used in Batman V Superman), also "Clark always said yes to anything with a badge or a flag." There are also elements from Batman Beyond, which first aired in 1999 (hence Earth-99), in which Conroy voiced an older Bruce Wayne mentoring a new Batman. The whole scene is full of nods to other versions - describing Kryptonite as "a little souvenir from the old hometown" is a Lex Luthor line from the original Superman movie, and him describing Superman as "strange visitor from another planet, with powers and abilities far beyond those of mortal men" comes from Superman serials from the 40s and 50s.

Trivia: M. Emmet Walsh in this episode plays Henry Allen, the father of Jay Allen, played by Tim Thomerson. In real life, Walsh is only eleven years older than Thomerson.

Trivia: While Camille is in severe distress back at Crellin Manor, a pensive Willis examines the interior of the sensor bar, trusting his subconscious to sense a clue. One of the things his eyes pass over is a bumper sticker with two American flags, originally stuck to the underside of the moveable piece of the bar top. Thus, the flags on the sticker are upside down, a sign for distress.

Happy Trails - S1-E9
Trivia: Bodhi is hacking into a computer when Tyson asks how he learned to do it. Bodhi replies that he spent five years working at an internet startup. Martin Starr, the actor who plays Bodhi, also had a major role in the TV show Silicon Valley, where his character, Gilfoyle, worked for a startup.

The Dark and Bloody Ground - S1-E3
Trivia: The bio on the back of the book (unsure when it was supposed to be printed, let's assume that copy is from that same year) says that the author was born 58 years ago. The man we see dead at the beginning of the episode looks several years younger. The picture used at the back of the book is from actor Guy Williams, who was almost 50 at the time.

Trivia: Actor Balthazar Getty is the son of the subject of this series, John Paul Getty III.

Episode #7.5 - S7-E5
Trivia: The Matron is called Fletcher. Louise Fletcher played the chief nurse (and a similar character) in "One Flew Over the Cuckoo's Nest."

Trivia: This show pays many homages to the 1968 film Bullitt which was also set in San Francisco. Firstly officer Rebecca Madsen's car is the exact same make, colour, and model Mustang that Steve McQueen drove in Bullitt. Also the final episode (Tommy Madsen) features a car chase which recreates many shots from the 1968 film. It even includes the green Beetle Volkswagen coming down the hill as seen in the movie.

Trivia: A number of the actors portraying police officers, suspects, and others have a southern accent, even though the show is set in Colorado. That is due to the fact that, although establishing shots were filmed in Colorado Springs, the reenactments were filmed in Tennessee, to save on costs.

Trivia: Jamie Chung, who appeared in Dexter: New Blood as a podcaster, went on to host a YouTube aftershow for this series, titled "Final Cut."