* ActorAllusion: One of the many, '''many''' people who have taken the court hostage over the years was a woman with a grenade who couldn't distinguish television shows from reality. She was played by Marion Ross, aka [[Series/HappyDays Mrs. Cunningham]]. She lists her many friends which were fictional TV characters and it included "The Fonz".
** Another one: Dan is being held hostage by an insane woman who acts out scenes from horror movies. When the TV announces that ''Film/TheTexasChainSawMassacre1974'' is about to begin, he says, "Seen that already." John Larroquette was the narrator for the original film.
* [[AuthorExistenceFailure Actor Existence Failure]]: Selma Diamond after the second season, and Florence Halop after the third. Marsha Warfield was hired because she was much younger, so this could be prevented from happening a third time.
* TheCharacterDiedWithHim: When Selma Diamond and then Florence Halop died, their respective characters were written as having passed away too.
* TheDanza: Selma Hacker/Selma Diamond, and Florence Kleiner/Florence Halop.
** Could also be invoked for Mac Robinson/Charles Robinson.
** Averted with Harry Stone played by Harry Anderson, oddly enough. According to series creator and executive producer Reinhold Weege's DVD commentary, the character was called Harry and was a devoted Tormé fan and magician before magician turned actor Harry Anderson auditioned.
** Yakov Smirnoff's occasional guest appearances as Yakov Korolenko.
* DawsonCasting: Don Cheadle plays a robber in one episode. The character was supposed to be 16, Cheadle was 24 at the time.
* DirectedByCastMember: Several.
** John Larroquette directed 2 episodes.
** Harry Anderson directed 2 episodes. He also wrote 5 of them. (One - "Caught Red Handed" from the fourth season - he both wrote ''and'' directed).
** Charles Robinson directed 3 episodes.
* HeyItsThatGuy: Creator/BrentSpiner, before he hit it big on ''Series/StarTrekTheNextGeneration'', made recurring appearances as Bob Wheeler.
** Lou Ferrigno - most famous at that time for playing ''Series/TheIncredibleHulk'' on TV - played a professional wrestler who was beat up by an old lady in one episode.
** Gordon Clapp, later Det. Greg Medavoy on ''Series/NYPDBlue'', plays Bull's AmbulanceChaser cousin in one episode.
** John Astin (aka [[Series/TheAddamsFamily Gomez Addams]]) as Buddy.
** Creator/RobertEnglund pops up in Season 3.
** Creator/Pam Grier was one of the pregnant women trapped in the building by a hurricane.
*** Dick Butkus was another woman's husband in those same episodes.
** Leon, the young shoeshine boy that Harry adopted in season 3, later grew up to be [[WesternAnimation/TransformersAnimated Bumblebee]] & [[WesternAnimation/{{Futurama}} Dwight]].
** Al Craven, a sleazy tabloid reporter who hassled the gang a few times during the first two seasons [[Film/WeekendAtBernies is the titular Bernie]].
** Estelle Harris, best known as George Costanza's mother on ''Series/{{Seinfeld}}'' played a hooker that got arrested with Christine's father in season 3.
** Bull's girlfriend in one episode was played by the diminutive Denny Dillon, from ''Series/SaturdayNightLive'' (during its notoriously awful sixth season[[note]]much like Creator/EddieMurphy and Joe Piscopo, Dillon was one of the few cast members who was genuinely funny during that season despite being given material that wasn't, but she ended up getting fired after Dick Ebersol took over[[/note]]) and the {{HBO}} sex comedy ''Series/DreamOn''.
** Michael Richards as a man who thought he was invisible.
** In the Season 2 episode 'Nuts About Harry', James Cromwell and [[Franchise/{{Predator}} Kevin Peter Hall]].
** [[Series/LoisAndClark Teri]] [[Series/DesperateHousewives Hatcher]] as Dan's superior's niece whom he's supposed to "keep out of trouble."
** [[Film/TheTerminator Dr. Silberman]] is the defendant in the season 2 premiere.
** "The Gypsy" has Hal Smith, best known to sitcom fans as [[TheAndyGriffithShow Otis]] and animation fans as the original [[WinnieThePooh Owl]].
** Creator/DonCheadle is the armed robber in "Jung and the Restless".
** Kelly Hu is the young Eskimo girl in "Danny Got His Gun Part 2".
** Gregory Itzin (Charles Logan from Series/TwentyFour) played a mobster's defense lawyer in one episode, and a mugger in another two-parter.
** In the very next episode (after the one where Itzin played a lawyer) Dennis Haysbert ([[Series/TwentyFour David Palmer]]) shows up as an ex con who dates Roz for a brief time.
** Markie Post was originally a model on ''Series/CardSharks''.
* HeyItsThatVoice:
** Ellen Foley, who played public defender Billie Young in season 2, sang back-up vocals for MeatLoaf. Her best known vocals are on "Paradise By the Dashboard Light" ("I wanna know right now / Will you love me forever?")
** [[Creator/RichardMoll Bull]] is [[WesternAnimation/BatmanTheAnimatedSeries Two-Face]].
* KeepCirculatingTheTapes: Warner began issuing [=DVDs=] of the show in 2005. It took eight years for them to release the entire series and even then most of the seasons are only available as [[VanillaEdition no-frills]], "manufactured-on-demand" releases available only online. Shameful considering ''Night Court'' was part of NBC's vaunted '80s Thursday Night Line-Up, along with ''Series/TheCosbyShow'', ''Series/ADifferentWorld'', ''Series/FamilyTies'', ''Series/{{Cheers}}'', ''Series/{{Wings}}'', ''Series/HillStreetBlues'', and ''Series/LALaw''.
* TheOtherDarrin: Phil Sanders was played by a different actor (and had a quite different characterization) when he first appears (and is revealed to actually be a wealthy former Wall Street banker who suffered a breakdown).
* RealitySubtext: "Flo's Retirement" was a fitting sendoff for Florence Halop, who was dying of breast cancer. And she ''still'' managed to finish out the season.
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