* ActorAllusion:
** Creator/TimCurry literally is [[Film/TheRockyHorrorPictureShow a hot dog]] in "Meat your Maker".
** Crew Crew is voiced by three actual rappers: Music/ChildishGambino, Music/TylerTheCreator and MC Lyte.
** While this is more of a Creator Allusion, J.G. Quintel was born in 1982, the year that Mordecai and Rigby travel back to in "Prank Callers." Plus, the title card of ''Ello Gov'nor'' (the movie, not the episode) has "©MCMLXXXII" written on it and the World Dishwashing Championship 1982 video in "Peeps".
** James Hong basically plays [[Film/BigTroubleInLittleChina Lo Pan]] during the episode "Fortune Cookie".
** Techmo is dressed up as [[Anime/CowboyBebop Spike Spiegal]] "Terror Tales of the Park III". Both characters are voiced by Creator/SteveBlum.
** EdAsner (Santa) previously portrayed Santa in ''Film/{{Elf}}'' and an obscure 1995 animated special called ''The Story of Santa Claus'' (which also featured Creator/BettyWhite and Creator/TimCurry), which was introduced to a wider audience when it aired on CBS in 2015 after ''WesternAnimation/FrostyReturns''.
** Terry Crews (Brock Stettman from "The Thanksgiving Special") used to be an American football player; he's more known these days as Julius from ''Series/EverybodyHatesChris'' and the crazy guy who succeeded Advertising/TheManYourManCouldSmellLike.
** Once again, Katey Sagal plays an [[AmazinglyEmbarrassingParents amazing embarrassing mom]] (cf. ''8 Simple Rules for Dating My Teenage Daughter'', ''WesternAnimation/{{Recess}}'', and ''Series/MarriedWithChildren'', though Mordecai's mom is more like Spinelli's mom than Cate Hennessy[[note]]who isn't that embarrassing a mom[[/note]] or Peg Bundy[[note]]who is embarrassing, but doesn't really act like a mom[[/note]]).
** In "Terror Tales of the Park IV", Music/GreyDeLisle voices another Japanese girl named "[[WesternAnimation/XiaolinShowdown Kimiko]]".
** In "Butt Dial", Rich Fulcher plays an answer phone that's also the leader of the Phone Guardians -- exactly the kind of bizarre non-sequitur role he played as a supporting actor on ''Series/TheMightyBoosh'', JG Quintel's inspiration for ''Regular Show''.
** Creator/LauraBailey voices another [[WesternAnimation/AvengersAssemble Russian spy named Natalia]] with a commanding officer named Romanov.
** While Creator/RobertEnglund doesn't voice a character who can control dreams, Anti-Pops was introduced in the episode, ''[[ANightmareOnElmStreet3DreamWarriors The Dream Warrior]]'' in which one of his henchman could invade dreams.
** In "Meet the Seer", Skips (Creator/MarkHamill) says [[Franchise/StarWars "I've got a bad feeling about this."]]
* BadExportForYou and BannedInChina: A lot of episodes have either been edited to pieces or banned outright in Cartoon Network stations airing in the United Kingdom, Australia, the Philippines, and Latin America.
** In Poland, Romania, and Hungary, the episode "The Unicorns Have Got to Go" has been banned for reasons unknown (probably because of gross-out humor).
** In Russia, the episode "The Real Thomas" has been banned because its premise of Thomas being a Russian spy was considered offensive as well as TooSoon, given Russia's current invasion of the Ukraine and the beginning of a second UsefulNotes/ColdWar between the United States and Russia. In countries such as the UK, the Philippines, and Australia, the episode is allowed to air, but a lot of the Russian references have been cut or altered to rename the country Druznia alongside the usual edits for violence and suggestive themes.
* CreatorCameo:
** In "Out of Commission", Cart is voiced by Toby Jones, one of the show's writers/storyboard artists (who also co-wrote the episode).
** In "Firework Run", Hector is voiced by Andress Salaff, another writer/storyboard artist of the show (who also co-wrote the episode).
** Skips' annoying cousin, Quips, is voiced by Matt Price, one of the writers of the show.
* CreatorsFavorite:
** During the San Diego Comic-Con 2014, some of the people working on the show revealed their favorite characters:
*** Matt Price, one of the writers and the voice of Quips, said Muscle Man is his favorite because he's passionate, funny, and cares about his friends.
*** Minty Lewis and Roger Craig Smith's favorite character is Eileen.
*** William Salyers' favorite character is Thomas (Death's son).
*** Sean Szeles said his favorite character was Hi-Five Ghost but changes his mind to CJ.
* TheDanza: Creator/RogerCraigSmith as Frank Smith.
* DescendedCreator:
** The creator, J.G. Quintel, voices Mordecai and High-Five Ghost after Creator/JeffBennett was replaced.
** Minty Lewis, the voice of Eileen, started out as a writer/storyboard artist on the show. When she wrote the line about the baby sea turtle eggs from "Do Me a Solid" and pitched it, they knew she was perfect for Eileen.
* {{Defictionalization}}: A company has made a real-life version of [[http://www.foodiggity.com/the-ulti-meatum-a-10000-calorie-burger-inspired-by-the-regular-show/ the Ulti-Meatum]], citing the show as the inspiration.
* EditedForSyndication: This occasionally happens (and not just in the countries mentioned in BadExportForYou and BannedInChina above; America did do some slight editing). In "Prank Callers", when the Master Prank Caller was taking a bath, the shot of the bathroom floor had a condom wrapper on it. In all reruns, it's cropped out/digitally removed
** In "Fortune Cookie", the word "chink" (an offensive term for someone who's Chinese) was digitally removed from a dim sum cart that passed by.
** In all later airings of "The Power", "How in the H are we gonna fix this S?" is changed to "How in the heck are we gonna fix this stuff?"[[note]]though the closed captioning on TV and Netflix has the original line, and the DVD and Blu-Ray version has the actual line intact.[[/note]], and "pissed" is changed to "ticked." The same goes for "you pissed me off" in "Meat Your Maker", but, oddly, "Benson's gonna be pissed" is left intact in "Free Cake." Both instances are odd, considering that Mordecai's "Holy crap, it's real!" and "You're screaming like a fricking maniac" haven't been edited in American reruns of the episode "'Ello, Guv'nur."
** In the UK, the infamous line "How in the H are we gonna fix this S?" was changed to "How in the heck are we gonna fix this hole?" (except for Netflix UK, where the line is "Now, how in the H are we going to fix this hole?" which still [[GettingCrapPastTheRadar gets crap past the radar]] by keeping the TWordEuphemism for "hell") well before Cartoon Network America decided to edit it.
* ExecutiveMeddling: Quite a few of these:
** After "The Power", "Free Cake", and "Meat Your Maker", Quintel and the crew weren't allowed to use the words "pissed off" anymore (which is why all instances of it were redubbed to "ticked off"--though the season one DVD and [=BluRay=] set has it uncut), nor any other pseudo-swear words (though "screwed" when used in the expression "screwed up" and "sucks" when used to mean something that's bad, unfair, or of poor quality are heard from time to time).
** After the season five finale, a lot of the violence and sexually suggestive humor had to be toned down (despite that the show is still rated TV-PG and the fact that the "Mordecai/CJ/Margaret" love triangle and the "Brilliant Century Duck Crisis Special" had everything that Cartoon Network executives wanted toned down), so if you feel that the later episodes of ''Regular Show'' feel too LighterAndSofter in comparison to the earlier episodes, then you're not alone.
* IKnewIt: Many fans had already guessed that Margaret was lying about having a boyfriend in "1000th Chopper Flight Party", well before "Not Great Double Date" debuted and confirmed it.
* ImageSource: This show provides the page image for:
** AnimalsNotToScale
** ButtonMashing ("Just Set up the Chairs")
** GrandTheftMe ("Rigby's Body")
** JoinsToFitIn ("Born to Be Blond")
* KeepCirculatingTheTapes:
** Wanna see the uncut version of ''The Power'' (you know, the one where Rigby actually says, "Now, how in the H are we gonna fix this S")? Only place you'll get to is on the Slack Pack DVD, as for the uncut versions of ''Free Cake'' and ''Meat Your Maker'' unless you copied it the first time you're out of luck unless you find it through [[DigitalPiracyIsEvil illegal means]].
** As soon as the final episode of the series aired, the entire series was completely dropped from Cartoon Network's scheduling. While it makes sense that a series that finishes up would be put to rest, it makes just as much sense to at least show reruns for a little while. The series finale itself aired once and ONLY once. You'll have to find it online to see it.
* MissingEpisode: Any episodes from season 1 that aren't re-run much can count, most commonly ''The Unicorns Have Got To Go''.
* NamesTheSame: Thomas is the name of both the park's billy-goat intern (who turns out o be a Russian/Druznik spy) and Death's son. Rigby even says so on the episode where Mordecai and C.J. have to babysit Death's son Thomas and C.J. says, "Isn't he, like, in college?" before Mordecai corrects her.
* TheOtherDarrin: Creator/JeffBennett voiced High-Five Ghost in his first two appearances instead of Quintel. The only explanation for the actor change (since both Quintel and Bennett are still alive and still doing voice work for the show) is that someone thought Jeff Bennett wasn't right for the role and decided that Quintel would be better (or Bennett missed a rehearsal, Quintel took over, and a mutual agreement was made that Quintel take over for Bennett).
** On the Thanksgiving episode, Creator/JenniferHale and Alastair Duncan voiced Mordecai's mom and dad. On the first episode that focused on them ("Maxin' and Relaxin'"), Hale and Duncan were replaced by Katey Sagal and Ed Begley, Jr.
* [[Main/RealLifeRelative Real-Life Relative]]: Janie Haddad's[[note]]Janie Haddad is the voice of Margaret[[/note]] husband, [[Series/ComedyBangBang Paul]] [[Series/MrShow F.]] [[Podcast/TheThrillingAdventureHour Tompkins]], voices a few characters, most notably a Were-Skunk in "Skunked".
* ScrewedByTheNetwork: In UGLY ways, and it's screwing gradually got worse AND WORSE as it went on. Similar to Adventure Time, this is most likely due to the saturation of the schedule with Teen Titans Go! reruns (either for financial reasons, or so the network can artificially lower the series' ratings to justify shitcanning it), its age (the series premiered in 2010, and is pretty old by industry standards), or MoralGuardians (the show is NOTORIOUS for it's mild profanity, heavy violent content, and mild sexual innuendo) are most likely to blame. Starting in February 2015, Regular Show was banished to a 7:30 to 8:00 PM timeslot, the only time it was shown.
** That was pretty bad, but in mid-2015, the show was ENTIRELY removed from the schedule unless there were new episodes (shown during a very irregular bomb week). All of it's previous slots were taken up by Teen Titans Go, to no one's surprise.
** It was confirmed the series would end in 2017 (unknown whether this was CN's doing or the creators choosing to end the series). n the meantime, though, it regained it's 7:30 timeslot in fall 2015, just in time to rejoice with Adventure Time reruns finally coming back in September, alongside Baby Looney Toons, Courage the Cowardly Dog, and new episodes of Ninjago, along with much less Teen Titans Go reruns, it seemed to have finally been averted.
** ....But, with the start of 2016, it proved it was too good to be true. New episodes, shorts and reruns were briefly aired from 6:00 to 8:00 PM in a block dubbed ''Regular Time Adventure Show''. Soon after, the block (as well as Adventure Time) vanished without a trace, and Regular Show only got to air a single 15-minute episode right before Adult Swim started on weekdays, and at this point, CN didn't even see it fit to ADVERTISE Regular Show.
** It got WORSE. In Mid-2016, after Season 7 concluded in June 2016, CN seemingly didn't see the point in treating it with dignity. For a very long while, Regular Show was only aired at 6:30 in the morning on weekdays, right after Uncle Grandpa (which, if you're wondering, also only aired at 6:00 AM), before reruns shored up entirely in mid-late 2016. The final Regular Show marathon ever was shown a few weeks before Regular Show: In Space (Season 8) premiered in September 2016. When Season 8 aired, reruns of the other 7 seasons all vanished ''for good''.
** But ultimately, the final season was treated worst of all. Regular Show's last 31 episodes were burned off weekly with minimal (though surprisingly, existent) advertising, typically right after a Teen Titans Go marathon meant to promote it (promote being very ill-defined in this case). But aside from that, everything was smooth sailing.... until the finale aired in January 2017 (which is a very, very rare feat for a long running series at the current time in the network), it received one final, massive insult to send it off. The final 4 episodes were aired on Martin Luther King Jr day (a Monday), rather than the usual Thursday-Friday premiere date at the time. To make matters worse, there wasn't even a marathon of the series or the 8th season as a tribute to one of CN's most beloved and longest running series (one of the shows that put it back on the map). Instead, they were aired right after a Teen Titans Go marathon, the movies ''Shrek'' and ''Rio'', and the TTG Island Adventure marathon. Right after the finale aired, reruns of the series, let alone any mention of the series at all, comepletey vanished without a trace.
* ShrugOfGod: In the series finale, when Mordecai meets [[spoiler: his wife, Stef,]] she originally wasn't given a name. During an AMA on Reddit, Matt Price, one of the writers, came up with her current name because J.G. Quintel loves ''Film/TheGoonies''.
* TalkingToHimself: J.G. Quintel voices both Mordecai and High-Five Ghost (after the episodes in which Creator/JeffBennett voiced HFG), and Sam Marin voices Benson, Pops, and Muscle Man. Both they and Creator/MarkHamill (Skips) voice several background characters as well.
** Thomas and Garrett Bobby Ferguson Jr. are both voiced by Creator/RogerCraigSmith.
** Courtenay Taylor voiced both the angry lady and the cake shop worker in "Take the Cake".
* TrollingCreator: Though the fans brought this upon themselves. See GodNeverSaidThat.
* WhatCouldHaveBeen
** ''Regular Show'' was originally going to be an Creator/AdultSwim show, but Adult Swim at the time had no room in its schedule for a new original program, which is why the show feels out of place on daytime Cartoon Network (even by Cartoon Network's already selective standards of what's allowed and what isn't).
** For "Do Me a Solid", instead of destroying the tape, Rigby originally kept it.
** Margaret was originally not going to wear any clothes like Mordecai, but was changed for [[ThinkOfTheCensors obvious reasons.]]
** In "Mordecai and the Rigbys", there was supposed to be [[http://i.imgur.com/Yk9FZ.jpg a scene where Mordecai and Rigby ask Benson why there were instruments in the garage. Benson has a flashback when he used to be a hippie where his ex-girlfriend, Veronica, who is also a gumball machine, leaves him for a business man.]]
** In "Skips Strikes", Skips was originally supposed to have a different secret. Which was [[spoiler: him being friends with the Magic Elements.]]
** The last three minutes of the Halloween special "Terror Tales in the Park" had to be redone because CN deemed it too gory and violent for kids. The end result? Rigby getting egged by a giant egg (which actually is still bad, since a later episode revealed that Rigby is deathly allergic to eggs).
** In "Trucker Hall of Fame", the flashback of Muscle Dad telling Muscle Man to take a raincoat with him on his prom was edited because the censors saw Muscle Man's line "Muscle Dad, I don't need no ''protection'' from the ''rain''!" as a blatant condom joke (or an endorsement for unprotected sex. Your call).
** Also Mordecai's mother was the mom who was critical to Mordecai. She was a Role Model of a mother to everyone else, but not in Mordecai's eyes. Also Rigby's mom is sweet, loving and protective of her son. Those are really interesting ideas, but for some reason, J.G. Quintel and the others don't want to make episodes about Mordecai and Rigby's parents, even through Benton Connor keeps recommending it to them. Although there's a Thanksgiving special that finally introduces Mordecai and Rigby's parents, they only make a brief appearances and we don't see much of their personality, and "Maxin' and Relaxin'" shows Mordecai's parents again (his mom is embarrassing, but well-meaning and his father is the sane one and a bit of a doormat).
** Much like the first Halloween special, the second one also had to have its ending changed for being too scary and violent, even for Cartoon Network, though the ending that did air ([[spoiler:where the tow truck crashes into a tree and everyone comes out as a ghost]]) didn't seem like much of an improvement in terms of eschewing death references. [[http://www.scribd.com/doc/110275736/Original-Ending-to-the-Regular-Show-Halloween-Special Here's some storyboard art showing the ending that did get rejected]].
** The "lady" the unicorns brought for Mordecai in "The Unicorns Have Got to Go" was originally supposed to be an obviously cross-dressed man in a skimpy bra, panties, fishnet, and heels outfit, but the Creator/CartoonNetwork censors asked them to replace the man with something less risque (and they did: it was a blonde biker with long hair who kind of looks like Robert Plant from Led Zeppelin)[[note]]though the animators could have also made the skimpy bra and panties into a somewhat conservative cocktail dress, unless the censors were really against having a transvestite on the show[[/note]].
** Quintel originally intended for the set-up of the show to be about Mordecai and Rigby working at a zoo full of ''humans'' and was very set on it. The higher-ups decided against it, and Quintel thinks it's actually better that they did.
** According to Calvin Wong, they wanted Wrestling/HulkHogan to voice Muscle Dad.
** In "Skips' Story" originally the Guardians of Eternal Youth were going to laugh at Walks' name choice.
** In "I Like You Hi", Toby Jones and Owen Dennis intended Yuji to be parody of reality TV personalities who think they're famous, but the only reality show they both watched was ''Series/SweetGenius'' (a Food Network cooking competition where chefs come up with bizarre, yet delicious desserts) so Yuji wasn't based on anything.
*** There were some jokes in the episode that had some parts removed that changed the context of the joke.
*** Yuji's tattoo was originally going to be on his forehead.
** Mark Hamill originally auditioned for Pops but Sam Marin already got the role, so J.G. Quintel had him audition for Skips instead.
** CJ was originally conceived as more of a "difficult woman" type, but writer Kat Morris felt it was [[UnfortunateImplications misogynistic]] and rewrote the character to just having some emotional hangups while otherwise being well-adjusted and kind.
* TheWikiRule: [[http://regularshow.wikia.com/wiki/Regular_Show_Wiki Regular Show Wiki]]
* WriteWhoYouKnow: J.G. Quintel has said that Mordecai is just himself as a bird, which is why he plays the character with his normal speaking voice. It's also why Mordecai never acts like a bird.
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