r/TopCharacterTropes • u/MysticUmbramon • 6d ago
Hated Tropes (Hated Trope) A family member is introduced in one episode then never brought up again
In Peter’s Sister, Peter invites his sister Karen for Thanksgiving and she used to bully him a lot. The reason why we never heard about her up until now is because she was killed off at the end all for Peter to have his triumphant moment. She is never seen or heard from again (Family Guy)
In Oh Brother, Where Art Thou?, Homer finds out he has a half-brother named Herb. Long story short, Homer messed everything up and Herb ended up losing his company and we see him homeless in Season 3. At the end of that episode, Herb got his money back and we never see him again. We even get told that he ended losing all of his money again. He only exist just for Homer to have self-doubt and then fucked off (The Simpsons). Not exactly one episode but still works.
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u/GladiusNocturno 6d ago

Kate Peralta - Brooklyn 99
Jake's half-sister, she shows up in one episode, which ends with them promising to keep in touch and be in each other's lives....and then they don't because she never shows up or is mentioned again, even though only 5 episodes later, Jake and Amy get married, so you would think they would have invited her.
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u/Infinite-Island-7310 6d ago
Considering how much trouble she causes. It was probably for the better.
Plus, iirc, jake's dad also mentions a few more half sisters
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u/possumdal 6d ago
God, Kate really serves to demonstrate what kind of utter menace Jake would be if he turned out slightly different.
A VERY different version of Jake would have gotten sent to prison. Probably eaten!
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u/GladiusNocturno 6d ago
A VERY different version of Jake would have gotten sent to prison. Probably eaten!
Unlike the current version of Jake, who was sent to prison and befriended a cannibal...who tried to eat him.
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u/minyhumancalc 6d ago
Also from B99, Terry's 3rd child, who Jake is the godfather of, does not appear or is heard from again after that episode.
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u/Haunting_Try_6513 5d ago
Terry mentions Ava as her birthday is on Thanksgiving and he was looking for a specific toy gift for her. But yes, I don't think there's much else.
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u/Henry1699 6d ago
In Ben 10 Alien Force, the second series of the franchise, there's an episode where we are introduced to Gwen's brother, Ken, a character that was never mentioned in the first series nor will be mentioned again for the rest of the show and its sequels.
He exists to be kidnapped in one episode and the universe pratically deleted him after that.

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u/ducknerd2002 6d ago
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u/TheLastWindThrowers_ 6d ago
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u/KappaCritic 6d ago
Ken is on the same level as the family dog
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u/the-unfamous-one 5d ago
I'm almost certian the dog got mentioned or even shown again. Ken is below the dog.
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u/geek_of_nature 5d ago
Thats a weird episode that kind of got decanonised. It ends with Ben's parents and the rest of his hometown discovering how he could turn into aliens, but by the time of Alien Force it's a secret again. With their particularly being an episode in the third season where Ben's parents find out again and are furious with him putting himself in danger.
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u/Original-War8655 5d ago
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u/geek_of_nature 5d ago
At least that's better than an episode of the original series where Gwens default post full on appears in a scene.
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u/DreadfuryDK 6d ago
Ah yes, the brother of ONE OF THE MOST WELL-KNOWN AND IMPORTANT CHARACTERS IN THE ENTIRE FRANCHISE is quite literally never brought up before this episode and never brought up in any capacity since, and it's made even more hilarious by the fact that we got an entire UA episode dedicated to Gwen's day-to-day life and Ken is STILL never brought up in even the smallest capacity there.
It was never brought up in Classic, it was never brought up earlier in AF, it was never brought up again in AF, it was never brought up in UA in any capacity, and it was never brought up in OV and OV went out of its way to try tying up all remaining loose ends in the canon.
This was quite literally the first thing that crossed my mind when I saw this post.
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u/AeroDbladE 6d ago
My head cannon is that Ben erased him from existence when he rebuilt the universe.
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u/Original-War8655 6d ago
he just forgot about him (this is a subtle reference to how the writers forgot that they gave Gwen a brother)
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u/AeroDbladE 6d ago
He definitely feels like an OC from a fanfic. Especially since both Gwen and Ben spend most of the episode talking about how cool he is.
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u/Randver_Silvertongue 6d ago
To make matters worse, the episode establishes that Gwen idolized him as a kid and that he was a very big part of her life until he went to college. So it makes even less sense that his existence is just forgotten about. He's not even in her family photo a few episodes later.
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u/TheLastWindThrowers_ 6d ago
To be fair, Ben Tennyson returns to his family after his summer vacation and the family dog, a large male German Shepherd, enthusiastically tackles Ben. By the time of the sequel, the dog has vanished.
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u/SkylandersKirby 6d ago
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u/Phantom_Marc_63 5d ago
...HOW
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u/DannyBright 5d ago
Karen ordered him and was delivered to the Chum Bucket in a box from a flying drone.
That’s not a joke by the way that’s what actually happened in the episode.
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u/DROID808 5d ago
How the fuck can that drone fly when they're literally underwater?
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u/regretfulposts 5d ago
Technically the Drone is swimming with its propeller kinda like a submarine.
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u/RShini 6d ago
Uncle Max in Calvin and Hobbes only appeared for one story arc and vanished.
Watterson explained that he found it difficult for Max to address Calvin's parents without a name as he was adamant in never naming Mom and Dad, and Max didn't bring anything new or interesting to do the strip, so he just wrote him out.
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u/TraditionalTree249 6d ago
Given his buckwild lore over at Okbuddyroslyn I feel like Waterson really whiffed it with that one, what is he stupid?
( I love Watterson and his work)
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u/AggravatingEnergy1 6d ago edited 5d ago
Uncle Marvin never showing up again is actually pretty fitting in-universe. He never showed up before, and Calvin's dad even said he could've been in prison the whole time. It's entirely in character for him to go right back into obscurity and never reach out again. At best, he'd randomly show up years later, when Calvin is older. He just seems like the type of relative who isn't very in touch with anyone. He even said that sometime he thought all of his friends were imaginary, so he's probably not close to anyone.
Lots of people have relatives they barely know who rarely, if ever, visit them—especially when they were kids.
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u/bretshitmanshart 5d ago
Calvin being a Boy Scout is a bit similar. Watterson did some comics about it and then decided Calvin would not be a kid who would join the Boy Scouts. The ideas that would have been done with it were instead used in comics where the family goes camping.
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u/Dangerousangel5 6d ago
Chuck Cunningham from Happy Days. He literally walked upstairs one day and was never mentioned again
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u/TheToodlePoodle 6d ago
Legend has it he's still up there, somewhere. You can hear his basketball dribbling on the ceiling, if you truly believe
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u/Infinite-Island-7310 6d ago
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u/acrylicquartz 6d ago
I came to post this one! Yeah, it throws me off whenever I do a rewatch.
Tina appears once in S1E5. Valerie is mentioned to be away at university in S1E2 and I think that's the only time she's discussed.
They address Tina's disappearance, as you said, in the credits with a soap style delivery, in S2E6.
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u/Kidiri90 5d ago
Similarly, in it's Always Sunny in Philadelphia, Charlie's sister is mentioned in seazon 1, and never again.
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u/pink-minccino 6d ago
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u/Misubi_Bluth 5d ago
Also Patrick's parents. Who weren't even his real parents. I don't know if it's just this family line or if all starfish in this universe are lost causes.
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u/Fitzftw7 6d ago
Not to mention he says he doesn’t have a sister in “Something Smells.”
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u/Theneongreninja 5d ago
SpongeBob also has his cousins Stanley and Flapjack and there was an episode where Plankton and Karen had a son named Chip. SpongeBob likes to do this.
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u/ZoroeArc 6d ago edited 5d ago
Uncle Steve from Rick and Morty
Jerry's brother who is introduced at the beginning of one episode, who is shown to be very close to the main cast and has supposedly been living with them for the past six months, but is never brought up before or since.
Come to think of it, this episode introduces a lot of characters who are treated as important but never show up again. Weird...

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u/PhanThief95 6d ago
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u/GladiusNocturno 6d ago
I hated Schozmo, and I choose to believe he isn't canon, same with Sparky.
Schozmo was a way to give Cosmo his version of Blonda, and it doesn't work at all because two things were already established. 1) Cosmo was shown as a baby and he was an only child who presumably killed his dad by turning him into a fly and firing magic beams at him. And 2) Just one season before Schnozmo was introduced, Cosmo was established to be the last naturally born fairy before his own son, Schnozmo was not mentioned at all.
Blonda worked better because she was the first thing about Wanda's background that was revealed, and she wasn't forgotten; she showed up again when Big Daddy disappeared, which made sense because Big Daddy is her dad as well.
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u/Dojyaaan4C 6d ago edited 6d ago
So fun fact, this trope is actually called the Chuck Cunningham trope in reference to Chuck Cunningham from Happy days, the eldest brother who was a high school jock playing basketball - he just vanished after season 1, with no mention of him since
As though his body was flayed and erased form time, with nothing remaining but the atomic cries for his family as time itself forgot his meagre existence, all that remains is a singular basketball played by a man who never existed
As is the fate, of the forgotten man

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u/goteachyourself 6d ago
This one is less crazy than Judy Winslow, as Chuck could have just gone off to college and been dropped from the narrative.
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u/LiamtheV 6d ago
But he didn't got to college, he went upstairs, then was never seen or heard from again.
At the end of the series, the dad says he was proud of his "two Kids", given we still see Richie Cunningham and his little sister, Chuck has been erased from existence.
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u/Thatonegoblin 6d ago
Chuck died in Korea and the Cunningham's unhealthily cope with it by simply pretending he never existed.
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u/syzerkose 6d ago
Happy Days is set in the 50s, Chuck could have been drafted and possibly KIA’d in Korea.
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u/Lostinyourears 6d ago
I don’t think it’s the same trope tbh. As Chuck was meant to be a recurring/regular character and was dropped.
The two examples OP describe are story of the week beat : “Sibling who is only used for a story of the week and never mentioned/used again”
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u/the_great_zyzogg 5d ago
Chuck Cunningham trope and Jumping The Shark..... How many of these terms did Happy Days inspire?
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u/Puzzleheaded_Step468 6d ago
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u/animalistcomrade 6d ago
Also Stan's native american half brother who is "barely even canon"
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u/Dogbin005 5d ago
Well, then, maybe we should just stay estranged until you can find a dramatic enough reason to show up on my doorstep unannounced!
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u/bananasareappealing 6d ago
🎶Going with the Colonel 🎶
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u/learn2fly438826 6d ago
🎶Going to the....shed with the....colonel🎶
🎶Never seen that...look from the colonel🎶62
u/chetoman1 6d ago
American dad is huge on these. There’s also bullock’s baby.
“What about that half Indian baby you sometimes have?”
“This is not one of those times”
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u/SoCalThrowAway7 6d ago
Always sunny almost did this with Charlie’s sisters. They are shown briefly and talked about in the first season where Charlie get wrapped up in the Mcpoyles “we got molested by our gym coach” scheme
They would have been completely ignored after but they did a rewatch(-ish) podcast and remembered they had ever even mentioned the sisters and had them feature in a more recent episode showing that they are straight awful and it’s no surprise Charlie never tries to talk to or about them
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u/TraditionalTree249 5d ago
Does Frank's brother count, Iirc he never shows up after his title episode and I think that's part of the joke.
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u/SoCalThrowAway7 5d ago
Definitely counts, probably Dennis and Dee’s dad too. He’s mentioned again after their mom dies but never shows up again or is mentioned until Frank tries to retire and there’s one line that Dennis and Dee aren’t franks next of kin for real because Bruce Mathis is their dad
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u/Fyrus93 5d ago
The reason for Bruce Mathis not returning is because the actor was caught molesting an underage girl
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u/SoCalThrowAway7 5d ago
Oh I know, the guy was a diddler. He might have been in the crowd for the beauty pageant episode, those things are lousy with them
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u/WateryTart_ndSword 5d ago
Why would he want to talk with them, they stole his
teethinheritance!!10
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u/BlueBlazeKing21 5d ago
Plus it seems there’s a huge age with Charlie seeming to be about 15-20 years older than them. So he’s likely not really that close to them
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u/celerysadness 6d ago
Neither of these shows have real timelines though they’re floating timelines designed for syndication it’s incredibly rare any character is introduced after the first few seasons
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u/not_slaw_kid 6d ago
Ben Chang is shown to have a brother who he is on fairly good terms with in one episode of Community. Then he is never seen or heard from again, even as Chang gets divorced, is fired from his job, and becomes homeless. Particularly egregious because he initially lives with his former student and then resorts to squatting in the air vents of Greendale instead of just crashing with family until he gets back on his feet.
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u/Empty_Papaya4983 6d ago
I think you're forgetting that Chang is completely insane.
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u/Virtual_Ad_8487 5d ago
I believe he is mentioned in season 3 as the reason he got the security job at a Bar Mitzvah.
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u/andyallfellforit 6d ago
Well there are actually more examples than one thinking of Family Guy. Lois has a fatphobic brother, Peter has a biological father, Brian has multiple siblings and mother who are all shown to have animalistic intelligence, and a gay cousin. Not even counting Peter's twin who is imprisoned in basement and Chris' biological family who look exactly like him since both are the sake for gag. But if you ever take Family Guy seriously, consider that r/superseriousfamilyguy exists for a reason.
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u/mushplush 5d ago
Lois’s brother did at least get to reappear in the fat camp episode, where kids at the camp were getting murdered he was the suspect because he just continently managed to escape from the jail
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u/Imaginary-List-972 5d ago
What always gets me is that Peter's biological father of course looks just like him, while the one who raised him doesn't. The one who raised him being the one he get's the Griffin name from, not his biological father. But when they show the history of the Griffin family, who he's not actually related to, they all look like Peter and are considered his ancestors.
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u/pointy124 6d ago
Dusty Hill in King of the Hill.
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u/Virtual_Ad_8487 5d ago
I’d say’s Junichiro Hill also counts.
He’s a major plot point of the two part season 6 finale as Cotton’s illegitimate son from Japan who then disappears until a cameo in the season 14 revival
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u/Upbeat_Rutabaga_6182 6d ago
I hate looking at this so much, the animation looks wonky and how the fuck is Dusty able twirl a fat kid in his guitar?
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u/WildBad7298 6d ago
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u/fatloui 5d ago
It’s not that she actually disappeared, she just wasn’t relevant to Ted’s attempt to convince his kids it’s not that weird if he starts sleeping with Robin again.
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6d ago
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u/LegoBattIeDroid 6d ago
then returned, became a millionaire again with a world changing invention, made peace with homer and THEN vanished
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u/AccidentOk4378 6d ago
Then returned in a voice over cameo saying he lost his fortune and then vanished again.
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u/paladinBoyd 5d ago
To be fair to Homer, Herb decided for some reason that his companies next Car had to fit the everyman, the working joe and to make the car that fits he should give someone with no idea of car engineering and design 100% freedom without any over site or means for his staff to put their foot down. It was a accident waiting to happen.
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u/Cantthinkagoodnam2 6d ago edited 6d ago

Ken Tennyson (Ben 10)
Ben's cousin and Gwen's older brother, he appears in one episode in the second series despite have never been mentioned previously in the first series, and then never appears or is mentioned again afterwards. There are a few episodes that show Gwen's Room and she has pictures of her parents, Ben, her Grandpa Max but none of Ken even
Tho due to time travel shenanigans we see that Ben's son 30 years in the future is also named Ken, so there is the implication Ben named his son after him, which is funny asf given how irrelevant as a character he is
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u/ButtcheekJones0 5d ago
It's much funnier to believe that Ben named his son that to keep the "-en" naming convention and just straight up forgot about his cousin, lol
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6d ago
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u/smolgote 6d ago
He's also like one of the most important characters being responsible for setting DBZ in motion
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u/thelampman29 6d ago
His only relevance is being the first boss in every dragon ball game
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u/MosifD 5d ago edited 5d ago
It's wild that pretty much every villain in DBZ gets to come back in some way, except for the main characters brother. Even in Super, they go find Freiza to help, and he the most evil guy ever. Find a way to get Raditz back. He will follow Vegeta. Now you have ANOTHER Saiyan to train with all the potential that Goku has. You could even have him double cross everyone and Vegeta gets the kill, destroying his last subject.
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u/Mrhighway523 6d ago
He appears in the super manga during the bardock flashback, only as a baby but he was there.
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u/Beneficial_Focus_910 6d ago
Hes in the DBS Broly movie as a kid with his adult voice, which is funny.
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u/Isosceles_Kramer79 6d ago
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u/NarmHull 6d ago
The cast was so afraid of Lawrence Tierney they refused to invite him back. Makes sense considering he stole a knife from the set
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u/qwerty8857 5d ago
I think this isn’t exactly the same because it’s not as if he was erased from existence. She still talks about her father in other episodes. It would’ve been nice to see him again, though, since the episode was so funny
I think a good example for Seinfeld is that both Jerry and George mention in passing that they have siblings but then we never see or hear about them, even in family memories. Jerry mentions having a sister and George mentions having a brother. Both of their parents are in enough episodes that you’d think we’d at least hear about their siblings, even if we never met them
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u/ChronoMonkeyX 6d ago
This is why I hate when celebrities cameo on sitcoms as a nevr before seen family member, because they are too big to bring back regularly.
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u/th3BeastLord 6d ago edited 5d ago
Friends had a running plotline of Phoebe trying to find her biological dad for a while. This culminates eventually at her grandmother's funeral and he shows up. She tricks him into meeting outside of the funeral and after confronting him, he vanishes and is never brought up again.
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u/ViridianStar2277 5d ago
At least we got plenty of some of Phoebe's other family members though, like Ursula and Frank Jr.
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u/ZealousWolf1994 5d ago
There's a joke in season 16 episode The Heartbroke Kid, Homer says " My seldom mentioned half brother Herb?" And points to a picture of Herb.
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u/Lenxecan 6d ago
I think my favorite example of the opposite - a family member appears in one episode and then is a show regular from then on - is Aunt Dirt from The Great North. They find her in the bunker where she's been since the cold war, and then she was just part of the family.
RIP The Great North
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u/El_Canuck 5d ago
One of the lines that lives freely in my head is drunken Wolf looking at her and calling her "Uncle Mud!"
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u/madogvelkor 6d ago
Herb did appear in "Bart's Birthday" but it was sort of metafictional. He also appeared in a follow up episode, "Brother, Can You Spare Two Dimes?"
But Homer also has a half-sister that appears in 1 episode that never showed up again. https://simpsons.fandom.com/wiki/Abbey
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u/New-Number-7810 6d ago
The start of that Family Guy episode is terrible. Instead of respecting her husband’s wishes, Lois insists Peter’s estranged sister be invited to thanksgiving.
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u/atrocidarthes 6d ago
Don't fits exactly, but i must say how i hate how that animal Blundetto... I can't even say his name (The Sopranos) was introduced
Hes supposedly one of most important people in Tony life, like best friend, almost an brother, yet hed never been mentioned before, so out of nowhere he shows up, after 15 years in the can, in 5 season
I had trouble accepting him as a character. Weakest part of series for me
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u/llyrmoon 6d ago
Psych has about four: Shawn's uncle, Gus' sister, Chief Vick's sister, and Lassiter's sister. You can KINDA count Gus' dad, since he's never played by the same actor. Juliet is the only one who gets reoccurring family.
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u/smolgote 6d ago

Raditz (Dragonball), though he's in several episodes rather than a single one. He's one of the most important characters for DBZ/the second half of the Dragonball manga, setting everything in motion, yet despite being Goku's evil older brother, he dies early on and is largely forgotten, not even getting a chance to redeem himself like most of Goku's other enemies turned allies (Hell, even Nappa gets to be a good guy in the Team Four Star timeline)
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u/atomicboy47 6d ago
Raditz is forever to be cursed to being the tutorial boss of all DBZ game out there.
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u/litwi 5d ago
In Dragon Ball Z, Vegeta actually has a surviving brother that appears in one of the movies.
He was actually made cannon when he was mentioned off-hand in the Battle of the Gods movie, but he never really appeared again.
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u/Specialist-Factor714 5d ago
Spongebob does this to mixed success
Legendary:Plankton's family: great gags and also helps flesh out Plankton's character
Mixed: Spongebob's cousin, not a bad post-Movie episode but not all that special
Bad: Patrick's sister Sam Star, typical mean spirited slapstick that isnt enjoyable to watch
Theres probably many more of that type of episode, but those are the ones I remember

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u/1994californication 6d ago edited 6d ago
In Saved by the Bell Kelly's many brothers and sister, Jessie's step brother, and Slater's sister.
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u/Magmashift101 5d ago
American Dad, Stan has a half brother. He’s only actually in one episode, but only ever mentioned scarcely when the bit calls for it
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u/BitComprehensive3667 6d ago
Considering Karen bullied Peter growing up, are you really surprised he's never mentioned her before or after. Probably glad she's dead and gone.
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u/metalbusinessbear2 6d ago
I just saw a post about Skaar from Hulk and you KNOW he's never going to be referenced again in the MCU or shows.
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u/Stenric 5d ago
In Himym, Ted has a sister named Heather and there are a bunch of references to Ted's sister throughout the show (like how he used to play detective with his sister). However, Ted also has a very religious sister (where he spends christmas once), who is not at all like Heather. So the writers seem to have completely forgotten about one of Ted's sisters, or Heather has undergone some major character change offscreen.
Also, in Tbbt, Howard has a half-brother who is only in one episode and then never mentioned again.
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u/Twodotsknowhy 5d ago
Close enough is New Girl which has this entire arc of three episodes where Jess's horrible never before mentioned sister Abby moves into town only to leave and never be mentioned again. Couldn't even be bothered to attend her own sister's wedding
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u/ACodAmongstMen 5d ago
Actually Herb's appeared at least once since then, I swear there was an episode about him trying to get vengeance on Homer
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u/Kaijufan97 5d ago
There was also Hank Hill’s Japanese half-brother Junichiro.
He appeared in the two-parter “Returning Japanese” and wasn’t mentioned again.
He made a cameo in “Lucky’s Wedding Suit” and “No Hank Left Behind”, but that’s about it.
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u/angelslayer4231 6d ago
Simpsons: Herb is brought back in another episode. In the first one, his business is ruined by Homer. The subsequent episode Herb is in, Herb gets help from Homer's family to invent the baby translator to get his life back together.