[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/diffrent_strokes_inception.jpg]]
[[caption-width-right:350:The humble beginnings...]]
A proper white man adopts two street-wise black boys. HilarityEnsues.

''Diff'rent Strokes'' (197886) made a star of Gary Coleman as Arnold Jackson, the younger of the two boys. Todd Bridges was his older brother Willis and Conrad Bain was the proper white man, Mr. Drummond. As one of Creator/{{NBC}}'s few late-'70s hits, it quickly launched a spinoff in ''Series/TheFactsOfLife'' the following year. [[UsefulNotes/RonaldReagan First Lady Nancy Reagan]] made a guest appearance in a VerySpecialEpisode about drug abuse, and Creator/{{ABC}}'s ''Series/{{Webster}}'' was a FollowTheLeader rival. Ironically, ''Diff'rent Strokes'' itself actually moved to ABC when it got canceled by NBC. The theme was co-written and performed by Alan Thicke.

Unfortunately, this show is best remembered now both for its [[Main/VerySpecialEpisode special episodes]] and the [[http://en.wikipedia.org/wiki/Diff%27rent_Strokes unhappy fates]] of its three leading kid actors (Gary Coleman, Todd Bridges, and Dana Plato, who played Mr. Drummond's daughter). As of the current time, Todd Bridges is the last surviving child star from the series among the original threesome (Dan Cooksey joined later, and has avoided the fates of his older co-stars), but it's such stories that the FormerChildStar trope is built upon. Gary Coleman's is parodied in the musical ''Theatre/AvenueQ''.

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!!Tropes:

* AbandonedCatchphrase: By Season 7, Arnold's "Whatchoo talkin' 'bout" catch phrase was used a lot less, and by Season 8 it was gone entirely.
* AbhorrentAdmirer: Overweight Carmella chases after Willis in Season 7.
* AnAesop
* AdultFear: Used in several episodes, including:
** "Arnold's Girlfriend": Your adopted son is terrified to have an appendectomy, and will only do so if his new friend shares a hospital room with him. The problem is, your son is black and the (white) friend's dad is a bigot. This causes the dad to pretty much manhandle the doctor in order to keep the kids from sharing a room. The kids then run away, leading to the real possibility your son's appendix will rupture and he will die.
** "The Bicycle Man": Your son and his friend face sexual assault from a supposedly kind store owner.
** "Sam's Missing": Not only does your (third) adopted son go missing, but the man who has him [[spoiler: intends to raise him as his own. This man also threatens to kill you and your family if your little boy does not cooperate.]]
** Some Kimberly-centric episodes crossed into this. Of note is the one in which she almost gets raped after hitchhiking, and the one in which she develops bulimia.
* AllGaysArePedophiles: Referenced and debunked in "The Bicycle Man" episode. In the VerySpecialEpisode's final scene -- one where the police detective basically answers common questions, as posed by the Drummonds -- Willis remarks that Mr. Horton (the seemingly genial bicycle shop owner with the sinister secret) ''must'' be a homosexual, which the detective refutes quickly.
* AttemptedRape: In a later season episode, Arnold and Kimberly accept a ride in a car from a stranger. He takes them back to his apartment and locks Arnold in another room while he takes Kimberly to his darkroom; their father and the police arrive JustInTime.
** And then there was the child molester who ran the bike shop, and convinced Arnold and his friend to come back into his house for ice cream and shirtless wrestling.
* BalletEpisode: Arnold learns ballet in "On Your Toes".
* BaseballEpisode: "Baseball Blues", complete with Major League ball player Lance Parrish as a guest star.
* BigApplesauce: The show takes place in a penthouse on Park Avenue. Arnold and Willis also originally came from Harlem.
* BigDamnHeroes: Phil, in several of the most memorable episodes where either his own children or close friends of his children were in deep trouble. He once stopped a child sex fiend from making his move literally seconds before he was going to rape a sedated Dudley. Another time, he arrived in time to interrupt a sociopath from raping Kimberly, and a year later he saved Sam from a family who was trying to adopt a "StreetUrchin" to replace their son who died in an accident months earlier.
* BigEater:
** Arnold, apparently.
** Kimberly, when she suffered from bulimia in Season 8.
* BigFancyHouse: The posh penthouse where the Drummonds live.
* BirthdayEpisode: Arnold, Willis, Mr. Drummond, Sam, and even Arnold's goldfish Abraham had episodes dealing with their birthdays.
* ABirthdayNotABreak: Mr. Drummond's birthdays had him getting into a car accident ("The Accident"), and Arnold and Kimberly getting kidnapped ("The Hitchhikers"). Also, Arnold's goldfish Abraham died on his own birthday ("The Will").
* {{Blackface}}: Kimberly dons blackface to teach her bigoted date a lesson in "Guess Who".
* BlackmailIsSuchAnUglyWord
* BorrowedCatchPhrase: Occasionally, someone else will use Arnold's "Whatchoo talkin' 'bout" catch phrase.
* BreakoutCharacter: Arnold Jackson.
* CatchPhrase:
** "Whatchoo talkin' 'bout, Willis?"
** Willis' habitual "Saaaaaaaaaay what?" would qualify as well.
* CelebrityParadox:
** In "The Music Man", Charlene (played by Janet Jackson) shows off her singing for the Drummonds. The song she sings: "The Magic Is Working", a song from Janet's debut album.
** In "The Slumber Party", Arnold mentions Kareem Abdul-Jabbar. Abdul-Jabbar would later play Arnold's teacher in two episodes.
** In Season 1, Arnold mentioned wanting to look like Reggie Jackson. Jackson later appeared (not playing himself) in "Father and Son Day".
* CelebrityStar: Muhammad Ali, Mister T, and First Lady Nancy Reagan.
* ChildHater:
** In "The New Landlord," the titular {{landlord}} decides to ban children from the building, meaning the Drummonds face eviction.
--->'''Arnold:''' Weren't you a kid once?
--->'''New Landlord:''' Nope. I went directly from birth to landlord.
** In "The Woman," a woman who Mr. Drummond wants to marry plans to send the kids away.
* ChildrenAreInnocent: Subverted. Arnold runs into Philip's nightgown-clad girlfriend and chats with her casually, supposedly having no idea what she's doing there. . .until he talks with Philip and it turns out that he actually ''does''.
* ChristmasEpisode: Two of them: "Retrospective" (which was also a ClipShow) and "Santa's Helper".
* ClipShow: In addition to the ChristmasEpisode mentioned above, there was also "Valentine's Day Retrospective".
* {{Cloudcuckoolander}}: Aunt Sophia.
* CompressedVice: Kimberly's bulimia in Season 8.
* ContinuityNod: In the Season 7 episode "Tonsils", Arnold and Mr. Drummond reference Arnold's appendectomy from Season 2.
* CorporalPunishment: One episode centered around Mr. Drummond saying he'd have to spank Arnold for some misdeed. Willis argued that ''he'' should spank Arnold, because he's "family". And he does.
* TheCouch
* CourtroomEpisode: "Small Claims Court" and "The Big Heist"
* CousinOliver: Sam.
* CrossingTheBurntBridge: After Arnold thinks he's going to die in "Fire", he calls up the Gooch and tells him off. He then finds out he's going to live, so he calls the Gooch again and claims the previous call was an impersonator.
* CrossOver: Several crossovers have occurred during the series' run. Including three that involved the [=McLean=] Stevenson sitcom ''Hello, Larry'' and a handful involving spinoff ''Series/TheFactsOfLife''. Characters from ''Diff'rent Strokes'' have also crossed over onto ''Series/SilverSpoons'' and, years after the show ended, ''Series/TheFreshPrinceOfBelAir''.
* DaddysGirl: Kimberly.
* DarkHorseVictory: In "Assert Yourself", Arnold and Dudley are running for class president, but their competition, a third candidate named Norman, ends up winning because most of the voters were too confused to vote for the other two.
* DeadpanSnarker: Arnold. The other characters have their moments too.
* DemotedToExtra:
** Kimberly, in the last two seasons, due to personal problems that were starting to crop up in her life.
** Willis in the last two seasons was dropped into the background since most of the storylines were focusing on Arnold and his new stepbrother Sam (Maggie's son). However, at least two Season 8 episodes are Sam-Willis episodes, with Willis giving advice to Sam.
* DomCom
* EarlyInstallmentWeirdness:
** Conrad Bain seems to act more like his character Arthur Harmon from ''Series/{{Maude}}'' in the first few episodes.
** When Lisa was first introduced in season 5, she and Arnold and Dudley were very friendly toward each other (Arnold even tried to help Dudley ask Lisa out, which would NEVER have happened in later episodes). As time went on, she and Arnold were much more antagonistic, and she treated his friends with contempt.
* TheEighties
* EnemyEatsYourLunch: The two-parter "Crime Story" has two teenage bullies stealing the lunches and money of both Arnold and Dudley. They are not depicted as being harmless or goofy; they back up their words with physical force. The bullies even beat up Willis, who intervenes for Arnold and Dudley, so badly that he has to be hospitalized!
* FoodSlap:
** Arnold and Dudley smear part of a sundae in each others' faces in "The Double Date".
** Charlene smashes a pizza in Willis' face after he makes a date with another woman in "The Older Woman".
** Kimberly sprays her boss with ketchup after he sexually harasses her in "Independent Woman".
* FosterKid: Averted with Arnold and Willis, which Willis points out to both Sam and a foster kid named Kurt in one of the final episodes of the series. Kurt -- with whom Sam had gotten into a fight at the Hamburger Hangar early in the episode -- had never had a stable family, always having to leave after a year, and was living in a group home at the time of the events of this episode. When Sam continues to balk about Kurt, Willis explains that had Mr. Drummond not taken him and Arnold in and adopted them, this would have likely been their fate.
* GettingCrapPastTheRadar:
** Did the writers not know that "gooch" is slang for the perineum, a flap of skin between the anus and the scrotum? Or was it just an JustForFun/{{inherently funny word|s}} in those halcyon days?
** In the first crossover with ''Hello, Larry'', Larry Alder tells visiting Mr. Drummond that he can stay in his daughter's room, and if he gets hungry, she "hides a salami in her nightstand". [[ADateWithRosiePalms I doubt she was using that salami for eating]].
* TheGhost: The Gooch, a bully at Arnold's school.
* GoodParents
* GotVolunteered: In "Drafted", Arnold dreams that he's been drafted by the army. When the general (played by Mr. Drummond) asks for a volunteer to take one step forward, everyone but Arnold takes one step back.
* HappilyAdopted: The Jackson brothers (eventually). Also Arnold's friend Dudley.
* HappilyMarried: Drummond and Maggie in the last two seasons.
* HighSchoolHustler: Season 8's "Arnold's Tangled Web" saw an adult version who exploited teenagers for his profit. The man, known as Spider, would in exchange for a fee forge report cards and pose as school officials to help them get out of scrapes. However, Spider made the mistake of crossing Mr. Drummond when he posed as a guidance counselor at Arnold's school, and Drummond set a trap to expose him to Arnold as a liar and scam artist. Drummond then warns Spider that he can expect the police to be called if he's ever known to be engaging in fraudulent activities again.
* IncestSubtext / FlirtyStepsiblings: Kimberly and Willis had a few moments that could be construed as flirting.
* JerkWithAHeartOfGold: Willis can qualify.
* JiveTurkey: Though not too much.
* JustTestingYou: When Susie tells Arnold that she reads ''The Wall Street Journal'', Arnold says he likes the comics in it. When she says there are no comics, Arnold says he is just testing her.
* LastNameBasis:
** In the early years, Arnold and Willis refer to Phil as "Mr. Drummond." Sam always addressed Phil as "Mr. D," even two years after he became his stepfather.
** Of the three housekeepers, Mrs. Garrett was the only one who wasn't regularly addressed by her first name (even by Mr. Drummond).
* LocalHangout: The Hamburger Hangar, during the final season. The [[ExactlyWhatItSaysOnTheTin short-order restaurant]] is owned by Mr. Wallace, who is often a JerkAss; and Arnold's mentally challenged friend, Carl, is employed there as a dishwasher [[note]](except for a brief period of time where Carl is mistakenly blamed for a prank Arnold's "friends" pulled on Mr. Wallace by breaking the dishwasher)[[/note]].
* LockedInAFreezer: Arnold and Willis are locked in the building's storage room in "Valentine's Day Retrospective".
* LockedInARoom: Arnold and Lisa are locked in the school's darkroom in "The Photo Club".
* MaintainTheLie: "Arnold's Tangled Web" has a hustler forge Arnold's report card to hide a bad grade. When Mr. Drummond is so impressed by Arnold's grades that he wants to see his guidance counselor, the hustler has to disguise himself as such to keep the ruse going.
* {{Malaproper}}: Arnold. An example comes from the season three episode "Drummond's Fair Lady":
-->'''Arnold''' [intending to say "Magna Cum Laude"]: "Hi, I understand you graduated Magna Cum Lousy."
* MayDecemberRomance:
** The impression the producers initially wanted to avoid when hiring an actress to play Maggie [=McKinney=], the woman that Mr. Drummond would eventually marry. (Conrad Bain was born in 1923, seven years prior to his character, Philip Drummond; the initial leading contender to play Maggie, Mary Ann Mobley, was born in 1939.) However, the first Maggie Dixie Carter was also born in 1939, and when she was let go at the end of the 1984-1985 season, Mobley was given a second look and eventually hired. [[note]]She appeared in about half of the Season 8 episodes.[[/note]]
** Mrs. Garrett dates a younger man in the second season episode "Mrs. Garrett's Romance".
** For that matter, most of Drummond's romances fall into this category.
* MightyWhiteyAndMellowYellow: A young man whose mother knew Phillip during the Korean War shows up on the Drummonds' doorstep.
* MinorWithFakeID: In "The Older Woman", Willis uses a fake ID -- and a fake moustache -- to get into a nightclub. He just narrowly avoids Mr. Drummond, but is found out when the older woman he picked comes to the house to visit.
* MissingMom and DisappearedDad: The whole background for the series. Henry Jackson died in 1975 and Lucy Jackson passed away in 1977, one and three years, respectively, before the series begins.
* MouthyKid: Arnold. And to some extent, Willis.
-->"You're a lily-livered weak sister with no guts!"
* MusicalEpisode: "The Music Man"
* MyHairCameOutGreen: In "Green Hair", Kimberly's hair turns green after shampooing it with acid rain that reacted negatively with a copper bowl.
* NewParentNomenclatureProblem: When Willis and Arnold start living with the man who eventually adopts them, they call him Mr. Drummond. They eventually ask his permission to call him Dad, which he gives (even before he officially adopts them). The explicitly do not call him Papa, which was their name for their biological father.
** With Sam, who unlike most stepchildren who refer to their step-parents by their first name he continues to refer to Mr. Drummond as "Mr. D." Arnold and Willis continue to refer to Maggie by her first name; the only one that ever gets a variant of mom is Lucy Jackson ("Mama").
* NoGuyWantsToBeChased: Vernon's sister Francine pursues Arnold in "Willis' Birthday", but by the end of the episode, he comes around.
* NotAllowedToGrowUp: Arnold aged much slower than the rest of the cast (his actor's kidney disorder meant that he never grew above 4' 8'').
* OffscreenKarma: Not shown or even discussed but implied in the second part of "Crime Story". Arnold gets audio evidence of the two bullies stealing his lunch and Dudley's lunch, then gives it to Detective Simpson. While the episode ends there, it's implied that this is more than enough evidence to arrest and prosecute the lunch stealing bullies.
* OhCrap: The climax of "The Bicycle Man," when Mr. Horton realizes that he's been found out by the police. When Drummond and a detective start to head for Horton's apartment, Horton says, "Wait a minute you can't go in there!" but is restrained by the other officer.
* OnePersonBirthdayParty: Zig-zagged. Everyone comes to Sam's birthday party in "It's My Party and I'll Cry If I Want To", but they're more interested in hanging out with the celebrity guest than in playing with Sam. So he goes to the Hamburger Hangar to celebrate by himself. Later, everyone from the party comes by with the cake to celebrate with him. Also played straight with Sam's friend, whose competing party had no guests because they all went to Sam's.
* OutOfContextEavesdropping: In an early episode, Willis and Arnold (black) plan to move in with another family because they overhear Mr. Drummond (white) saying that black children should be put with black families, thinking that he didn't want them; but he didn't believe in that, he was telling Mrs. Garrett what a buttinski social worker said to him after she met the boys.
* PaedoHunt: In live-action episodic television, "The Bicycle Man" was probably the trope codifier.
* ParentsAsPeople: In the aptly titled "Parents Have Rights Too", as Philip explains to Arnold that he sent the kids away so that he and his girlfriend could spend time together, Arnold admits, "I know what goes on between men and women. I just never thought of ''you'' like that."
* ParentExMachina
* PicnicEpisode: Darkly portrayed in Season 6's "The Hitchhikers" (the episode where Kimberly and Arnold accept a ride from a stranger named Bill). While the two are held hostage, Bill possibly having had problems with trying to pursue relationships with women in the past, as alluded to in the episode's closing scene  tries to get Kimberly to be his girlfriend, and to set the mood brings out a picnic basket and blanket and says that's what they're going to do ... .
* PieInTheFace: "Hooray For Hollywood"
* PlayingATree: Mrs. Garrett mentions this in "The Girls School".
--> "My teacher said I was the best tree in the play."
* PoorlyDisguisedPilot:
** "The Girls School", which bore ''Series/TheFactsOfLife''.
** "Almost American", which revolved around an immigration and naturalization class.
* PostRobberyTrauma: A 1985 episode saw Arnold robbed at knifepoint, and tries (successfully, for awhile) to supress his deep trauma ... but Mr. Drummond senses otherwise and arranges for a schoolroom exercise to get Arnold's true feelings out in the open.
* ThePrecariousLedge: Arnold's predicament in "The Magician".
* PrecisionFStrike : On a show that aired early during prime time, with no swearing or vulgar language whatsoever, hearing Mr. Drummond say "Willis, where the HELL have you been?" was jarring.
* PrenupBlowup: Drummond and Maggie.
** Happened when Dixie Carter joined the cast. The prenup was discarded and they married anyway.
* ProductDisplacement: Look closely whenever Arnold is reading a comic book. Sometimes the book's cover will be covered in stickers to avoid showing the title.
* PromotionToOpeningTitles: Pearl in season 6, and Maggie and Sam in season 7.
* PutOnABus: Mrs. Garrett, then Adelaide. They both [[TheBusCameBack came back]] for the Drummond and Maggie wedding episode.
** Kimberly, via RealLifeWritesThePlot. Dana Plato, who was pregnant at the time, was not part of the regular cast in the last two seasons, only making occasional guest appearances.
* RealLifeWritesThePlot: Late in the series, an episode was devoted to the fact Arnold was suffering stunted growth, since the show had been on so long that Arnold's lack of height had to be explained somehow.
* RearrangeTheSong: In addition to the producers having to recast the role of Maggie [=McKinney=] after moving to ABC, Alan Thicke also had to record a new version of the show's theme song, because NBC owned the copyrights to the original.
* RecklessGunUsage: Willis gets a gun to protect himself in "The Peacemaker", and nearly shoots Mr. Drummond when Willis mistakes him for an intruder.
* RecurringCharacter: Many. The most frequent is Dudley.
* ReplacementGoldfish: Literally. Arnold's beloved goldfish Abraham dies, so the family tries to hide it from him until they can get a replacement. When Arnold becomes suspicious, and happens to notice Mr. Drummond's will, he jumps to the wrong conclusion and thinks that Mr. Drummond is dying. Arnold notices that the new goldfish "isn't Abraham!"
* SendingStuffToSaveTheShow: In-universe, Arnold and Sam start a letter-writing campaign to save ''The Sandy Squirrel Show'' from getting taken off the air in "Arnold Saves the Squirrel".
* SeriesContinuityError: In "Where There's Hope", Arnold tell the guests at his birthday party to enjoy it, because they have to go back to school on Monday; in "Assert Yourself", Arnold dislikes the idea of getting the day off for his birthday, because it's during summer vacation.
* TheShowGoesHollywood: The two-part "Hooray for Hollywood".
* SmokingIsCool:
** In "The Girls' School" episode, the character Blair (the snobby rich girl, played by Lisa Welchel) can be seen puffing on a cigarette; this character trait would be dropped (Welchel is a non-smoker) by the time ''Series/TheFactsOfLife'' made it to series.
** Twisted around in a 1984 episode, where Arnold and his buddy, Dudley, experiment with smoking cigarettes. They get a graphic lesson when Dudley's father reveals he is a chronic smoker and needs a lung operation; the fade-to-black scene showed the man lighting up in the hallway, just after leaving the Drummonds' apartment.
* SpinOff: ''Series/TheFactsOfLife''. The spinoff outlasted its parent show by two years, and had a year-longer run (nine seasons, vs. ''Strokes''' eight).
* SternTeacher: Arnold's teacher Mr. Wilkes.
* StreetUrchin: In "Sam's Missing," how Sam's kidnapper tries to pass him off to his friends and even his own family.
* SuspiciouslySimilarSubstitute: Adelaide Brubaker for Edna Garrett, then Pearl Gallagher for Adelaide.
* ThematicThemeTune: Flirting with ExpositoryThemeTune in the lines "A man is born, he's a man of means / Then along come two, they got nothing but their jeans..."
* TheTalk: Drummond has already educated Arnold about "The Birds And The Bees", but he needs to give a new version when the kids come home early from a camping trip and catch him and his current girlfriend together--it's early in the morning and she's only wearing a nightgown, making it very obvious, even to the young Arnold, what's transpired.
* TooSmartForStrangers: One of the more infamous examples.
* UncannyFamilyResemblance: Conrad Bain plays Mr. Drummond and his female cousin Anna, while Dana Plato plays Kimberly and her male cousin Hans, in "The Van Drummonds".
* UnexpectedPositive: In one episode, Mr. Drummond purchased a device that measured stress on his doctor's advice. Sure enough, his rating was high, but when the kids goofed around with it, Willis' was off the chart (he was coping with schoolwork, extracurricular activities, running for class office, etc).
* VerySpecialEpisode: Numerous examples. Most famously "The Bicycle Man" 2-parter.
* WeddingDay: Mr. Drummond and Maggie in Season 6.
* WhatHappenedToTheMouse: In "The Boyfriend", Kimberly announces to Mr. Drummond that she's engaged to her boyfriend, David. David is never mentioned on the show again.
* WholePlotReference: The RashomonStyle episode "Film/{{Rashomon}} II", where Mr. Drummond, Willis, and Arnold all have different versions of how they stopped a robber. Only Pearl knows the truth.
* WithFriendsLikeThese : In certain episodes, it seems like Arnold's friends, even Dudley, will turn on him in a heartbeat, and on a dime.
* WritingAroundTrademarks: Despite Arnold's doll clearly being a Literature/PaddingtonBear[[note]]Or at the very least, a knockoff[[/note]] in "Goodbye, Dolly", the doll is only referred to as "Homer" in the episode.
* WrongNameOutburst: In the season four episode "Double Date", Phillip suggests that Willis accompany Arnold on his first date, since Arnold is too young to date by himself. Before Willis exhausts all options in finding a date, leading to Phillip's suggestion that he [[ItMakesSenseInContext take Kimberly out instead]], Willis tells Arnold the reason why he's looking for a date with another girl is because he called his girlfriend Charlene the wrong name.
-->'''Willis:''' She's not talking to me on account of the name I called her.
-->'''Arnold:''' What's that?
-->'''Willis:''' [[AccidentalMisnaming Janet]].
** Coincidentally, Charlene was played during that season by a Janet: Janet Jackson.
* YourFavorite: Sam's favorite food is Southern-fried [=SpaghettiOs=].
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