* AdoredByTheNetwork: From 1998 to 2003, they were pretty much the forerunners of Nickelodeon back in the day until ''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.
* 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).
* 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}}.
* HeyItsThatVoice: Creator/CreeSummer portrayed Suzie (though some episodes have E.G. Daily as Suzie. See TheOtherDarrin), and you can't miss Creator/TonyJay's baritone as Dr. Lipschitz.
** Chuckie was replaced by [[WesternAnimation/TheSimpsons Bart Simpson]] (Creator/NancyCartwright) after years of being voiced by [[AaahhRealMonsters Oblina]] and [[WesternAnimation/DextersLaboratory Dexter]] (ChristineCavanaugh).
** The voice of Didi (and her mom, Minka) is Melanie Chartoff, a cast member and fake news anchor on ''Fridays'' (an early 1980s ''Series/SaturdayNightLive'' [[DuelingShows competitor]] and [[{{Expy}} clone]] that aired on ABC). She was also on the TV show adaptation of ''Ferris Buellers' Day Off'' called ''Parker Lewis Can't Lose''.
** Stu is voiced by Jack Riley, who was also famous as the voice of the man in [[https://www.youtube.com/watch?v=HRNQKUlAzUI comemrcials]] for Country Crock margarine.
** Charlotte Pickles is TressMacNeille (meaning that she's [[ChipAndDaleRescueRangers Gadget Hackwrench]], Dot from ''Animaniacs'', and a buttload of characters from ''TheSimpsons'' and ''Futurama'' [Mom from Mom's Friendly Robot Company, the new voice of Lunchlady Doris, the Crazy Cat Lady, Dolph the bully, and the orphans Patches and Poor Violet])
*** Her assistant, Jonathan, was originally voiced by Rene Auberjonois (Louis the French chef from ''The Little Mermaid'' and PepeLePew on ''TheLooneyTunesShow''). In later appearances, he was voiced by Creator/DanCastellaneta (the guy who voices Homer Simpson, Grampa Simpson, Barney Gumble, Krusty the Clown, and others).
** Tommy is [[WesternAnimation/ThePowerpuffGirls the toughest fighter (Buttercup) while Dil is the joy and the laughter (Bubbles)]] (it's Elizabeth "E.G." Daily and TaraStrong). If only they had the voice of Blossom. This would have made for a great HilariousInHindsight moment...
** The clearly washed-up superhero Captain Blasto is played by--who else--Creator/AdamWest.
** Creator/ScottMenville (Kevin on ''MissionHill'' and Robin on ''WesternAnimation/TeenTitans'') was often cast as many teenaged characters on the show, including Larry his friend Steve, and Hoagie Doozer MD.
*** In "Angelica Orders Out" [[Film/{{Clueless}} Jeremy Sisto]] voiced a character with Larry's very character design who worked at Zippy's Home delivery.
** Angelica (Cheryl Chase) was in the English dub of MyNeighborTotoro as well as and was one of the girls in the "Log" commercial on ''WesternAnimation/RenAndStimpy''. She was also the voice of Pinky in the English dub of TheNoozles.
** Grandpa Lou was [[Series/CharliesAngels Bosley]] on the original 70s ''Charlie's Angels'' (the one with Farrah Fawcett). See TheOtherDarrin below.
** Susie's dad is [[Series/{{Firefly}} Shepherd Derrial Book]].
** In the Japanese dub:
*** Tommy is [[Manga/CardCaptorSakura Chiharu Mihara]] in the TV series and in the movies [[Creator/AiOrikasa he is]] [[MobileSuitGundamWing Quatre Raberba Winner]].
*** [[ChiakiTakahashi Angelica]] is [[VideoGame/BlazBlue Litchi Faye Ling]] and [[VideoGame/TheIdolmaster Azusa Miura]][[note]]And one of her first roles as a voice actress.[[/note]]
* 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. Amazon is offering DVD record-on-demand sets but those can run at about $35 a piece. Compilations exist on the Playstation Network and iTunes but they do not encompass the whole series. Netflix did have the whole series for a while, but for some strange reason decided to remove seasons 1 through 3, a shame because those are considered by many to be the series at its very best, though that is highly debatable.
** Somewhat averted, as recently the entirety of seasons 1, 2 and 3 have been released on iTunes, though getting the entirety of the remaining seasons still remains a hassle.
* NamesTheSame: Susie's mom, Lucy Carmichael, has the same name as Creator/LucilleBall's character from ''TheLucyShow''.
** Kira is in no way similar to [[Manga/DeathNote Light Yagami]].
* 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 due to maternity leave (which turned into a custody battle for her children), 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.
* 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 with little fanfare, only for the network to notice that reruns consistently had the same ratings as the first run episodes. It got a reprieve at the last minute in 1995 and was brought back in 1997. It was officially cancelled in 2004 however.
* WhatCouldHaveBeen: Originally Creator/TwentiethCenturyFox had a deal with Nickelodeon to release movies of the Nicktoons in 1993 but this fell through. ''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.
* WriteWhoYouKnow: Tommy was based on Arlene Klasky and Gábor Csupó's son, and was named after co-creator Paul Germain's son, Thomas.