* EnforcedMethodActing: In this version of the mythos, before Superman shows up, Lex Luthor is shown to be an adrenaline junkie, staring down cobras and punching out sharks. There was only enough money to film one of these scenes, and the snake wrangler evidently ate up the safety budget, so John Shea had to stare down a poisonous snake for real.
* ExecutiveMeddling: There were fights between the writers, the execs, and the fans as to whether Lois and Clark would tie the knot in the show. The results [[EasyAmnesia were]] [[CloningBlues not]] [[JumpingTheShark pretty]].
** Also a good example of PanderingToTheBase by the fourth season. The fandom, specifically one corner of it, had far too much influence on the show, resulting in the ridiculousness of [[ShockingSwerve villain after villain wanting to break them up]]. You know, instead of actual cases and stories.
** It got so bad the episode they got married was called "[[ThrowTheDogABone Swear to God, This Time We're Not Kidding]]"
** It also interfered with the comic book marriage which would have originally happened in 1992 but was postponed to coincide with the TV show marriage. The resulting gap in their story arc led Jerry Ordway (the then-current writer/penciller of ''The Adventures of Superman'') to comment, "Why don't we just kill him?" [[{{ComicBook/TheDeathOfSuperman}} The rest is history.]]
* GeniusBonus: In the pilot, Clark crashes at the Hotel Apollo while he looks for work. The name is an intentional reference to his Superman persona. In Hellenistic times and especially in modern times, Apollo became identified as the god of the sun.
* HeyItsThatGuy / HeyItsThatVoice: Creator/TonyJay has a series-spanning role as Lex Luthor's [[BattleButler butler]], and of course his famous baritone voice is heard often.
** Lord Nor is played by Simon Templeman, best known for voicing [[LegacyOfKain Kain]].
** [[Series/StarTrekTheNextGeneration Tasha Yar]] brings Lex back from the dead.
** Jor-El's {{Hologram}} is played by none other than [[Film/StarTrekVITheUndiscoveredCountry Chancellor Gorkon]].
** Another ''Trek'' alum, [[Series/StarTrekDeepSpaceNine General Martok]], appears as the head elder of New Krypton.
** [[Series/StarTrekVoyager Chakotay]] does a mean Hans Gruber.
** The leader of the Toasters gang is [[Series/StarTrekVoyager Vulcan Ensign Vorik]]. His [[TheHyena acting style]] here is basically the Vulcan pon farr taken to its natural conclusion.
** We're not done yet. [[Series/StarTrekTheNextGeneration Reginald Barclay]] plays a loony with a KillSat at his command.
** And a well-known ComputerVoice is the police dispatcher Lois hears in "Neverending Battle".
** [[BarneyMiller Lt. Scanlon]] helps Clark & Lois track down UFO investigator Trask.
** [[Series/{{MASH}} Frank Burns]] comes to Lois with information about Superman but he turns out to be an AlienAbduction fanatic.
** Lenny Stoke is played by [[MacGyver Mudoc]]. Those looking for him to fall off a high place while screaming will be disappointed.
** In a bit of hindsight casting, Michael Mckean plays a younger Perry White on ''Series/{{Smallville}}''. He appears on this show as the scientist who helps create Bizarro.
** Jimmy's dad is James Read, best-known for playing Victor Bennett on ''Series/{{Charmed}}'' and George Hazzard in ''NorthAndSouthUS''.
** H.G. Wells is played by [[Film/WeekendAtBernies Bernie]], who looks [[IncrediblyLamePun livelier than usual]].
*** And his older self is played by... [[WesternAnimation/DuckTales Gizmo-Duck]]? Well, at least that explains how he knows how to use all that science stuff...
** Until this point, Justin Whalin was a kid actor best known for playing Anthony on ''Series/CharlesInCharge'' and older Andy in ''Film/ChildsPlay 3''.
** The MasterOfDisguise "Anonymous" is played by [[LatexPerfection several actors]], before finally being unmasked as...[[WTFCastingAgency Uncle]] [[FullHouse Joey]]??
** "Lame Brain" Johnson's mother is [[TheNanny Sylvia Fine]], in a frighteningly [[EvilMatriarch reverse]] portrayal of her other role.
** Zara is portrayed by Mallory from ''FamilyTies'', in a NotSoSmallRole.
** [[Series/LALaw Douglas Brackman]] went from a lawyer to omnicidal MadScientist, but at least he has hair now.
** [[Series/TheWestWing Leo McGarry]] pops up as DepravedKidsShowHost "Mr. Gadget", with [[Film/BackToTheFuture Biff]] as his son/accomplice.
** [[Series/{{Cheers}} Diane is Lucille Newtrich.]]
** [[TheNextGeneration Commander Riker is Tim Lake]] in "Don't Tug on Superman's Cape".
* JustForFun/JohnMunch: Well, almost. Richard Belzer appears throughout Season 1 as [[http://en.wikipedia.org/wiki/Inspector_Henderson Inspector Henderson]], a jaded cop and sometimes-ally to Clark Kent. In his last appearance, Henderson is shown breaking up Luthor's wedding and placing him under arrest. That's right, [[UltimateShowdownOfUltimateDestiny John Munch defeats Lex Luthor]]!
* MethodActing: You wouldn't know it just from watching him, but John Shea took Lex Luthor very seriously. Not only did he study [[Creator/FriedrichNietzsche Nietzsche]], but he checked himself into John Jay College of Criminal Justice ''in-character'' to get a diagnosis on 'his' pathology. It's a wonder they even let him out.
* RetroactiveRecognition: Jimmy Olsen is [[FinalDestination constantly being stalked by death]]. ..Not unlike being on this show, come to think of it.
** As for the other Jimmy, he once saved the world from [[Film/DungeonsAndDragons Jeremy Irons' eyebrows]].
** After leaving the Daily Planet, Cat Grant parlayed her years of gossip column experience into [[Series/BabylonFive commanding a space station]].
** Inspector Henderson is initially played by Brent Jennings, better-known as JiveTurkey vampire [[Series/BuffyTheVampireSlayer Mr. Trick]] (Jennings reprises the role of Henderson in ''[[SupermanTheAnimatedSeries Superman: The Animated Series]]'').
** Ching (that is, the [[TheOtherDarrin first one]]) ended up marrying an Earth woman named [[Series/TheCloser Brenda]].
** [[CSIMiami Det. Calleigh]] moonlights as Lana Lang for an episode.
** On that note: Hey, [[Series/{{CSI}} Warrick]], nice dreadlocks!
** In Season 2's ChristmasEpisode, Jimmy Olsen's girl of the week is (fittingly) [[Film/TheWorldIsNotEnough Dr. Christmas Jones]].
** And he follows it up with dating ''Film/{{Bloodrayne}}.'' Seriously, what is it with Jimmy and these women?
** Raymond's brother [[EverybodyLovesRaymond Robert]] used to be an [[CannotTellAJoke unfunny]] clergyman named "Reverend Bob".
** [[Series/{{Supernatural}} Bobby Singer]] once stole a scientists' invisible suits (maybe he needs them to help with demon hunting?)
* WhatCouldHaveBeen: An earlier script for "Seconds" had Mindy Church team up with Lex to try and kill Superman, and being punished for her crimes.
** Kevin Sorbo was in the running to play Clark/Superman. In fact, it was a toss-up between [[http://www.youtube.com/watch?v=VQpGY2m_WFA him and Dean Cain.]] (skip to 6:09 for the good stuff.)
--->'''Cain:''' I heard his audition, too. I was like, "Oh, [[BadassBoast I got this.]]"
** Lex Luthor was going to be the villain of "Soul Mates" instead of Tempus, but John Shea was filming something else and couldn't make it.
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