* BeamMeUpScotty: JohnnyYongBosch has said that people are always asking him to say "[[TotallyRadical Morphinominal]]." Adam ''never'' said that during the show, that kind of slang was phased out before the end of the first season while Adam didn't show up until the middle of the second season. He would eventually say it years later in the [[Series/PowerRangersOperationOverdrive "Once A Ranger"]] ReunionShow.
* TheDanza:
** Catherine Sutherland as Katherine Hillard.
** Austin St. John's real name is Jason Geiger. He used the stage name Austin St. John to alleviate confusion on set, as there was already another actor and his own character with the same first name.
* DawsonCasting: Do you honestly know any highschoolers that look that old? Well, out of the original five, Austin St John was 18 and Thuy Trang was 19, but Walter Emanuel Jones and Amy Jo Johnson were 22 and David Yost was 24. It would have been much more believable if they made them in college.
** Made worse by the fact that the characters were retroactively de-aged from seniors to freshmen after the first season was a success. Originally Austin St. John and Thuy Trang (and Jason David Frank (19 at the time)) were going to be plausibly the same age as their character.
** The second season wasn't as bad, but still fairly notable. Of the four (including Kat) replacements, Johnny Yong Bosch was 18, Karan Ashley was 19, Steve Cardenas was 20, and Catherine Sutherland was also 20. Add in the remaining 2, and you get another 20-year-old (Jason) and a 25-year-old (David). Before Kat, however, Amy was 23 and still on the show.
** It wasn't just the rangers who suffered from this. Bulk and Skull were played by actors aged 23 and 19, respectively. [[http://www.rovang.org/wiki/bulk-and-skull.jpg It showed.]]
* DirectedByCastMember: A few episodes were directed by Paul Schrier (Bulk).
* DirectToVideo: ''Alpha's Magical Christmas'', ''Lord Zedd's Monster Heads'' and ''The Good, the Bad and the Stupid: The Misadventures of Bulk & Skull''.
* HeyItsThatGuy: Creator/{{Amy Jo Johnson}} (Kimberly) went on to bigger and better things, most notably ''{{Felicity}}'' and ''Series/{{Flashpoint}}''.
* HeyItsThatVoice: JohnnyYongBosch (Adam), on the other hand, became a voice actor with credits in ''{{Trigun}}'', ''Manga/{{Bleach}}'', and ''CodeGeass''
** As for Barbara Goodson... ZOMG! [[VideoGame/DisgaeaHourOfDarkness Laharl]] is trying to conquer Earth!
** Machiko Soga, the actress who portrayed Witch Bandora (Rita Repulsa's counterpart) in ''[=ZyuRanger=]'', voices Rita in the Japanese dub of Power Rangers.
** Creator/RichardStevenHorvitz (better known for being the voice of [[InvaderZim Zim]] and [[TheGrimAdventuresOfBillyAndMandy Billy]]) as Alpha's voice.
** Anime dubbing dame WendeeLee became the voice of Scorpina (and later Alpha 6 in ''Series/PowerRangersInSpace'').
** Various MonsterOfTheWeek characters were voiced by [[Series/BreakingBad Bryan Cranston]], after whom Billy is named.
** RobertAxelrod voiced Finster and Lord Zedd on ''Franchise/PowerRangers'', as well as Armadillomon and Wizardmon in Franchise/{{Digimon}}
* [[MissingEpisode Lost Episode]]: The original {{Pilot}} for ''Mighty Morphin' Power Rangers'' was advertised and presented as such on Fox Kids. Notable changes include the casting of the Yellow Ranger as Audri [=DuBois=] as opposed to Thuy Trang, Zordon being known as "Zoltar", and the Zords being referred to as "Droids".
** There's also a second variation on the pilot, which Tony Oliver shows exclusively at conventions.
* MeanCharacterNiceActor: Bulk and Skull are two terrible bullies, but their actors (Paul Schrier and Jason Narvy, respectively) are said to be some of the nicest and most fun guys you could ever hope to meet. One PSA even did AnAesop rather effectively about this. Of worthy note is that as the show goes on, Bulk and Skull go from being annoying jerks to comic relief, and as time passes even further, they go from okay guys to actual heroes.
** In a bit of a subversion, there's Tommy Oliver. While a nice guy and not a villain proper, he is quite famous for his dark beginnings, where he was brainwashed into being mean, rude, and very cold. The actor, Jason David Frank, is just as nice of a guy (if not moreso) as the character he (normally) plays. It's worth noting that in later seasons, his character strikes fear into Bulk and Skull, and becomes more and more of a gruff stoic. Meanwhile, his actor is up at panels cracking jokes and relating funny stories to his fans.
* TheOtherDarrin: Rita's suit actress would be played by Carla Perez in season 2 with Barbara Goodson still providing her voice, in order for Rita to appear in American footage. Scorpina as well in "Goldar's Vice Versa" played by Sabrina Lu .
* TheOtherMarty: Audri [=DuBois=] was originally cast as Trini in the original pilot. Also Skull was originally played by an actor other then Jason Narvy; while he was not named in the pilot, his biker attire and crush in Kimberly identify him as the same character. However, Bulk and Skull's personalities were reversed in the pilot.
* ThePeteBest: Brad Hawkins was originally set to play the White Ranger, who was originally intended to be a new character separate from Tommy the Green Ranger. Due to Tommy's immense popularity on ''Power Rangers'', Tommy was instead written back on the show as the White Ranger, while Hawkins was given the lead role on ''Series/VRTroopers'', which was originally intended to be a vehicle for Jason David Frank.
* PostscriptSeason: Season 1 after "Doomsday". It was supposed to end with a shot of the Rangers sealing Rita away again, and is why Tommy makes a [[TheCameo cameo]] appearance at the end. Most of the rest of the season was new footage created by Toei specifically for ''Power Rangers''.
* PropRecycling: Old monster suits were often reused and altered in some fashion to create new monsters.
** Mr. Ticklesneezer was painted blue and dressed in a SantaClaus-like outfit to become Grumble the Elf (who was more of a friendly elf creature rather than an evil monster - but then, so was Mr. Ticklesneezer).
** Snizard was painted gray and given a cobra hood to become the Cobra Monster in ''Series/PowerRangersLightspeedRescue''.
** Chunky Chicken had his feathers plucked and had armor and a helmet added to become Turkey Jerk.
** Grumble Bee had his red sections painted silver and was given buck teeth to become Waspicable (a peaceful monster who didn't want to harm anybody) in ''Series/PowerRangersInSpace''.
** Pirantishead, [=RoboGoat=] and Turbanshell were repainted and had a bunch of crap added to them to become random alien monsters in an episode of ''Series/PowerRangersTurbo''.
** Primator was painted whitish and had extra fur added to him to become the yeti-like Snow Monster.
** Salaguana was chopped into little bits and used as reptilian armor for Triter, a heroic alien warrior from ''Series/PowerRangersZeo''.
** Silver Horns was painted green and oddly had a tongue added, since he didn't really have a mouth, to become Repellator.
** The Wizard of Deception's rat monsters were actually leftover, unused suits from the movie that were replaced by the Oozemen.
** Inciserator was made up from the head of an unused ''[[Series/NinjaSentaiKakuranger Kakuranger]]'' monster and the body from Merrick the Barbaric (whose own episode hadn't even aired yet).
** Tube Monster was Pipebrain repainted white and blue, but that is actually from ''Series/GoseiSentaiDairanger'' to show the cycle starting all over again with an almost identical type of monster.
* YouLookFamiliar: Series Write Doug Sloan played Kimberly's Uncle Steve in "Foul play in the sky" and her mother's new boyfriend in "Return of an Old Friend" its somewhat popular in fanon that they're the same person and Kimberly's mother left him for his brother.
* WhatCouldHaveBeen: At some point before Season 2, there were plans to introduce new versions of the Dinozords, as well as various different takes on the White Tigerzord ([[http://multiply.com/mu/alphabetho/image/11/photos/7/1200x1200/31/1031.jpg?et=f1Q7u4PLc%2Bxqg9ynzzCmkw&nmid=68959525 as can be seen by these pieces of concept art]] from a ''Super Sentai'' Giant Robot artbook). These plans were aborted when it turned out that adapting mecha footage from another ''Sentai'' proved to be more economical for Saban than commissioning Toei to make more new footage for them
** A redesigned version of Titanus the Carrier Zord was also planned to be introduced for Season 3. [[http://img149.imageshack.us/img149/5461/070ed.jpg Various concept arts]] were drawn, but Titanus was left mostly unchanged in Season 3 (aside for the addition of the Dragonzord's chest plate, since the Dragonzord was absent during Season 3). Some of those designs were made for ''Series/PowerRangersInSpace'', and indeed a "Space Titanus" toy was in fact released, though it was never used in the show.
** A Samuraizord, shown in the same image above with the Titanus redesigns, was considered for the second season as well. The Samuraizord would've been very similar to the Red Dragon Thunderzord, in which it could transform between a Tyrannosaurus and a humanoid robot. Another reject concept art shows a robot that was formed from three bikes.
** Dan Southworth (Eric Myers on ''Series/PowerRangersTimeForce'') stated at Power Morphicon that he had auditioned for the role of Adam back during production of the second season.
** Saban originally considered adapting other ''Sentai'' seasons prior to ''Zyuranger'' into ''Power Rangers'', as early as ''Series/ChoudenshiBioman'' ([[http://articles.latimes.com/1986-08-12/business/fi-18776_1_haim-saban source]]). Other ''Sentai'' seasons, such as ''Series/KousokuSentaiTurboranger'' and ''Series/ChoujinSentaiJetman'' are rumored to had been considered as well.
** At one point the writers actually considered having Goldar eventually overthrow Rita instead of creating Lord Zedd
** Producer Johnathan Tzachor originally wanted Tommy to die in Jason's arms at the end of The Green Candle part 2 to match ''Zyuranger''. He was overuled and this idea never made it to scripting
** Initially there was a completely different idea of adapting Zyuranger. The show would be called Galaxy Ranger (which was Zyuranger's international title) The characters were going to be:Victor Lee (Red Ranger) is an asian martial artist. Zack Taylor (Black Ranger) is a detective with an attitude. Kimberly Harte (Pink Ranger) is a clumsy aerobics instructor. Billy Cranston (Blue Ranger) is an athletic heartthrob with a body of steel. Trini Crystal (Yellow Ranger) is a struggling, white novelist.
** The original finale (written before the show took off) would have seen Rita crashing the Ranger' senior prom; Saban was even looking into bringing Machiko Soga over to the States so she could physically interact with the Rangers at the Juice Bar. It would have ended with the rangers StormingTheCastle after getting access to Rita's spells and Jason reciting an incantation to seal her away, but the show continued after it was a hit. Tommy's cameo was a relic of this original plan as...
*** Jason David Frank was going to be in VR troopers (called Cybertron at the time) and shot a pilot of it. After Power rangers was picked up for more episodes Brad Hawkins was cast as the White Ranger, Saban decided that it was too risky to replace Frank now that there was the opportunity to bring him back, so Hawkins went onto VR troopers and Frank returned to Power Rangers.