* AbsenteeActor: Tommy is missing from the episodes "Cuffed", "The Unfair Pair", and "Pickles vs. Pickles". Notably, those are all ADayInTheLimelight episodes for Angelica.
* ActorAllusion:
** In "Stu Gets A Job" Stu mentions ''Series/TheRockfordFiles'' is coming on. Jack Riley, Stu's voice actor guest starred on an episode of ''The Rockford Files''.
** In "Cynthia Comes Alive", Sara Gilbert shows up to basically play [[{{Series/Roseanne}} Darlene Connor]] for eleven minutes.
** Having Creator/AlexTrebek voice a thinly veiled version of himself win an episode was one thing, but Didi's competitor in that episode was voiced by [[Series/MatchGame Charles Nelson Reilly]] (who had worked with Trebek on the short-lived ''Series/{{Battlestars}}'', and would later voice [[WesternAnimation/SpongebobSquarepants The Dirty Bubble]]).
* AdoredByTheNetwork: From 1998 to 2003, they were pretty much the forerunners of Nickelodeon back in the day until ''WesternAnimation/SpongebobSquarepants'' came along.
* BeamMeUpScotty: Due to a [[http://static.fjcdn.com/pictures/Russian+Roulette+Pops.+http+www.facebook.com+mybestestfriendkoolkeef_df7559_4266485.jpg certain image]] circulating the Internet, Many fans believe that there's a scene from "Grandpa's Bad Bug" where Grandpa talks about playing RussianRoulette. The actual dialogue was just Grandpa telling Stu and Didi that he was sick, Didi offers to take him to the doctor but he tells her he just wants to sleep it off. The dialogue in the aforementioned image is lifted from an episode of ''WesternAnimation/KingOfTheHill''.
* BreakthroughHit: For Creator/KlaskyCsupo and Creator/{{Nickelodeon}} (though credit should also be given to ''Doug'' and ''Ren and Stimpy'' as those two shows also helped Nickelodeon gain fame in the 1990s).
* {{Composers}}: Mark Mothersbaugh was the sole composer for the first season; Denis M. Hannigan took over for seasons 2 and 3; Mark Mothersbaugh returned for the first revival in 1996, and co-composed with his brother, Robert Mothersbaugh until the end of the series.
* CreatorBacklash: Up until the movie, Arlene Klasky hated Angelica and following the episode "The Trial" (Though as of 2016, she has changed her tune and actually admitted that it's her favorite episode and the one that stood out to her the most, because she was impressed that the writers had come up with an intelligent way to satirize Rashamon) she complained to the writers that the babies were starting to act too old for their age.
* CreatorsFavoriteEpisode: In the series' tenth anniversary special, "Still Babies After All These Years", the cast got to share their favorite episodes with the viewers. Specifically;
** Creator/ElizabethDaily has stated that her favorite episode is "[[NakedPeopleAreFunny Naked Tommy]]".
** Gabor Csupo has stated "Chuckie Vs. the Potty" as one of his favorite episodes.
** Creator/KathSoucie has stated that her favorite episode is "I Remember Melville", due to how touching that episode's subject is[[note]]Chuckie dealing with the death of his pet bug[[/note]].
* CrossDressingVoices: Played straight in the English cast, as all the male babies are voiced by women. In contrast, most foreign dubs actually have voice actors that match the gender of the characters, as heard in the French dub
* FreezeFrameBonus: Pay close attention to the whip-pan at the beginning of the Chanukah Special. One might see a caricature of {{Elvis|Presley}}.
* InMemoriam: The episode "Lady Luck", where Grandpa Lou plays a major role, is dedicated to his voice actor David Doyle, who passed away before the episode aired.
* KeepCirculatingTheTapes: The show got tons of VHS releases, but of course those are all now out of print and only a select few episodes were ever released to DVD. As of 2014 however, the complete series is available on DVD exclusively at Amazon and can be purchased on iTunes and Amazon Instant Video. Nearly the entire series can also be viewed on {{Hulu}}.
* MissingEpisode:
** "Cuffed/The Blizzard" from Season 3 was pulled from US reruns on Nick and Nicktoons by the mid 2000's, probably over concern of small children playing with handcuffs. It still aired in other countries and is available on DVD and iTunes, and Creator/TeenNick's programming block ''The Splat'' aired it on December 20, 2015.
** Because of music licensing issues with the song "Vacation" by The Go-Go's, the Season 4 episode "Vacation" was rarely aired on TV and is not available on iTunes or Amazon Instant Video. However, it ''is'' included on the Season 4 DVD.
** Due to a manufacturing error on the Season 3 DVD, the contents of the fourth and fifth discs are exactly the same, meaning the episodes that should be on Disc 5 are lost entirely, and despite being pulled so Amazon could rectify the issue, the discs are apparently still the same. The episodes in question ''are'' available on digital services.
** No videotape recordings of the ''Rugrats Magic Adventure'' show that was at [[Ride/UniversalStudios Universal Studios Hollywood]] from 2000 to 2001 are known to exist, [[https://www.youtube.com/watch?v=NUSNbKKIY9Y only the show's audio can be found]].
* NamesTheSame: Susie's mom, Lucy Carmichael, has the same name as Creator/LucilleBall's character from ''The Lucy Show''.
** Kira is in no way similar to [[Manga/DeathNote Light Yagami]].
** In the episode, "Opposites Attract", Tommy and Chuckie meet two kids who have personalities similar to theirs; a girl named Sam, and a boy named Freddie. They have the same names as [[Series/{{iCarly}} Carly Shay's]] two best friends.
* OrphanedReference: In "The Unfair Pair", Angelica's reference to Tommy and Chuckie not having any siblings became this after the birth of Dil and Kimi becoming Chuckie's sister later on in the run.
* TheOtherDarrin: After David Doyle's death, Joe Alaskey took over as Grandpa Lou's voice actor.
** Also, when Christine Cavanaugh -- the original voice of Chuckie Finster -- left the show as she decided to retire from voice acting, she was replaced by Nancy Cartwright (from ''WesternAnimation/TheSimpsons''). Try as she might with the role, Ms. Cartwright's take on Chuckie made him sound like Ralph Wiggum, which didn't sit well with a lot of fans.
** For unknown reasons, Chuckie was played by CandiMilo in two video games instead of Nancy Cartwright.
** "The Last Babysitter" had E.G. Daily (normally the voice for Tommy) voice Susie Carmichael rather than CreeSummer.
** Susie's siblings change voice actors often.
** In the Japanese dub, there's a different voice cast between the characters from the TV series and the movies.
** TheOtherMarty: ElizabethDaily voices Tommy in all media, except in the pilot where he was voiced by Tami Holbrook.
* ScrewedByTheLawyers: When the show was in its infancy (''no pun intended'') they introduced a [[{{Notzilla}} giant Kaiju dinosaur called "Reptar"]] which served as a [[RecurringExtra background fictional in-universe character]] for the main characters to love and idolize. [[DoingItForTheArt Originally it was treated as a tribute]] to [[{{Franchise/Godzilla}} Godzilla]]. The problem with any animation series is, it has to earn its daily bread not through ratings, [[RealityEnsues but merchandise]]. [[BreakoutCharacter Reptar's popularity soon soared]], and thus the demand for him to feature more predominately in and out of series. [[{{Creator/Toho}} Toho]] ''never'' takes [[{{Understatement}} kindly to parodies]] of its intellectual property, [[AwakenTheSleepingGiant and soon couldn't help but become aware of Reptar]]. Klasky Csupo was taken to court in 2002 and had an injunction put in to return it back to its minor role, thus featuring the character much less. Though this had negligible effect overall, since the show was well past its prime at this point and would be cancelled in another two years.
* TalkingToHimself: Phil, Lil, and their mother, Betty, were all voiced by Creator/KathSoucie. Also, Creator/MichaelBell voiced both Drew (Angelica's dad) and Chaz (Chuckie's dad). Didi and her mother were both voiced by Melanie Chartoff.
** Don't forget about Larry and Steve (Creator/ScottMenville).
** In Mexico, it's Dil and Susie. In Sweden, Tommy and Angelica.
* {{Uncanceled}}: The show originally ended in 1994 due to contractual reasons as a rule that no Nicktoon at the time could be renewed over 65 episodes, but due to everlasting popularity in reruns, the show was renewed for a further six seasons until being cancelled again in 2004 as a part of a dispute between Klasky/Csupo and Nickelodeon (The dispute being that they couldn't agree on a price to produce the shows).
** Due to growing popularity once again, Nickelodeon has recently hinted that Rugrats may be on the list of shows being resurrected, due to popular demand so only time will tell if Rugrats will be uncancelled again.
* UnintentionalPeriodPiece: The first three seasons are chock full of [[TheNineties nineties]] pop-culture references, such as ''Siskel & Ebert'', and Charlotte's cell phone a). being big enough to see and b). only making phone calls.
* WhatCouldHaveBeen: Originally Creator/TwentiethCenturyFox had a deal with Nickelodeon to release movies of the Nicktoons in 1993 but this fell through. ''WesternAnimation/TheRugratsMovie'' did come out in 1998 through Creator/{{Paramount}} after Viacom's acquisition of the studio, but whether the plot details were the same remains unknown.
** In the original pilot Lou's name was Stu Pickles Sr.
** Before Angelica was made, [[http://www.ew.com/article/2016/08/11/nicktoons-25th-anniversary-oral-history-doug-rugrats-ren-stimpy/3 early on it was considered having Chuckie be the bully to the other babies.]]
** There was a rumor that if Rugrats Go Wild was successful, then a fourth movie would've been made with the characters in their grown forms.
** After Christine Cavanaugh retired from voice acting, Creator/CandiMilo was considered for Chuckie's new voice actress, even playing him in two video games. However, Klasky-Csupo brought Nancy Cartwright in instead, thinking that having a more "famous" voice actress off of ''WesternAnimation/TheSimpsons'' would bring in more viewers as the popularity of ''Rugrats'' was slowly starting to wane.
* WriteWhoYouKnow: Tommy was based on Arlene Klasky and Gábor Csupó's son, and was named after co-creator Paul Germain's son, Thomas.
** Angelica was based off a girl who used to beat up Paul Germain as a kid. In fact, until he brought it up, [[WhatCouldHaveBeen Angelica was going to be a boy]].
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