- In Batman: The Animated Series, "Robin's Reckoning: Part 2":Zucco: Don't tell me what I gotta worry about. I'm not back in town five minutes— five minutes— and he's on my tail. You don't know the bat. He don't let up! He's the dark angel of death, man, and he wants me!
Mook: Why does he want you, boss?
Zucco: How should I know?!
- Because Zucco killed Dick Grayson's parents and earned a Roaring Rampage of Revenge from Batman and Robin. Of course, Zucco's a member of The Mafia, he's killed plenty before. Zucco also doesn't know that the Graysons' son had grown up to become Robin, so he could not have made the connection even if he knew it was over those two people specifically.
- Subverted in The New Batman Adventures episode "Joker's Millions". The Joker throws a party that Bruce Wayne attends, Joker offers Wayne some champagne, which Wayne refuses, citing the fact that the last time the two met, Joker threw him off a building. Despite only happening a month ago (in-universe), The Joker doesn't seem to remember the incident at all. It turns out the Joker that Wayne was talking to was a body double in the real Joker's employ.
- Batman Beyond
- In "Meltdown" a reformed Victor Fries, having been given a cloned body without the condition to need freezing temperatures to live in, is confronted by an elderly man whose family Mr. Freeze destroyed years ago in the original Batman series. Fries cannot even recall the event. However, moved by this, he sets up a foundation based on the money from his legitimate earnings and the accrued interest to pay back all the victims of his crimes, though admitting it is still no excuse.
- From "Ascension", Batman and his nemesis have a chat, throwing in a little Black Comedy for good measure.
- Later, in "Speak No Evil", a newly-sentient, speech-capable gorilla named Fingers tracks down the poacher, Van Dyle, who captured him and his mother when he was a baby. Given that Van Dyle is cowering and all but begging for his life (and wouldn't you be?) it's considerably less badass.Fingers: Where is my mother?!
Van Dyle: I p-probably sold her.
Van Dyle: I don't know, I don't keep track!
Fingers: She was my mother!
Van Dyle: (clearly terrified) To me it was just another gorilla...
- The Batman:
- Zigzagged when Clayface broke into Arkham to get revenge on the Joker, the Joker had no idea who he was. (The Joker had Mind Raped Ethan Bennett, and his Joker Putty formula had turned him into a monster, but the Joker had no idea this had happened.) However, later in the episode, when he finds out that Clayface is Bennett, then the Joker remembered. (And in his sick mind, he was pleasantly surprised that what he had done had turned out so well.)
- The show's version of the Cluemaster was a former boy genius who was the reigning champion on a quiz game show, until he got a question wrong but was convinced the producer and host engineered his loss to a more marketable girl prodigy champ. Decades later he abducted all three people he blamed for his loss to punish and kill them, and none of them had any idea who he was at first (To be fair, it was decades later, and Cluemaster didn't look remotely like his childhood self, including becoming morbidly obese on his consolation prize of a lifetime supply of chocolate). Even Batman pointed out that he could have been anything he wanted with his brains, instead of wasting his life obsessing over something the rest of the world neither remembered nor cared about.
- Batman: The Brave and the Bold: In the episode "Chill of the Night!", Batman furiously confronts Joe Chill, the man who killed his parents and set him on the path to becoming the superhero he is. While Chill does remember killing the Waynes when Batman confronts him, it clearly had much less effect on him than it did on Bruce; his immediate response to Batman's accusations is "That was a lifetime ago!"
- The first Hunter was Gillecomgain, who was just some farm kid when Demona casually mangled his face after he caught her stealing food. He made a mask to highlight the scars and began hunting her relentlessly. Several decades later, she finally overpowered him and unmasked him before giving the finishing blow. He stared at her and asked if she now understood why he hunted her for so long. Demona flatly replied, "No." This made him angry, of course. After he is killed, Duncan takes up the mask and position of Hunter. Duncan's descendants began a thousand year blood hunt for her, and she still doesn't know why (not that she would care anyway). In a deleted scene from "Hunter's Moon: Part Two", the leader of the latest generation of Hunters confesses to Elisa that no one in his family remembers how or why the hunt began, either.
- This was echoed later on with Malcolm Canmore, son of Duncan. Macbeth killed Duncan in battle and banished Canmore to England. Later, Canmore becomes the new Hunter and invades Scotland, eventually unmasking dramatically in front of Macbeth.Macbeth: Should I have recognized you, sirrah?
- Of course, he does remember Canmore, he just doesn't recognize him. It's been over fifteen years since they last met, after all.
- On the heroes' side, they had a repeated negative effect on the life of a man named Vinny until he becomes a comic relief villain, and the only person to ever carry out revenge against Goliath to his satisfaction.
- In Superman: The Animated Series, Superman finally ends up fighting Darkseid and gives him an And This Is for... punch for Dan Turpin, the man he killed during the Apokolips invasion. Darkseid has no idea who he is talking about and merely exclaims "Had I known one human's death would pain you so, I would have killed more."
- Played with in the 1990s X-Men series before Quicksilver and Scarlet Witch find out the real truth:Scarlet Witch: We're here to get revenge for one who has fallen in your path.
Magneto: You will need to be more specific. There have been many.
Quicksilver: It was our mother! (Let's You and Him Fight ensues)
- Note that Magneto may not remember the many who "have fallen in his path", but he does remember Magda. In fact, he was paying a visit to her grave right there, before being ambushed. They really should have been more specific.
- Avatar: The Last Airbender:
- Princess Azula shows herself to be this type of villain when her plan against her brother begins to take shape in Season 3. You can almost see her going through the exhaustive list in her head of My-Diabolical-Plots-Against-Zuko.Zuko: Why'd you do it?!
Azula: You're going to have to be a little more specific.
- A more humorous version of this happens when Sokka and Zuko travel to the Boiling Rock and run into Suki:Sokka: Oh, good. You guys have met.
Suki: Actually, we met a long time ago.
Zuko: We did?
Suki: Yeah. You kind of burned down my village.
Zuko: Oh. Sorry about that. (beat) Nice to see you again?
- This example is a bit odd in that it seems it was a bit of a Tuesday for Zuko and Sokka. While he was obviously present for the whole episode, Sokka clearly remembers Suki but apparently doesn't remember Zuko setting fire to her village - probably because Zuko chasing the Gaang around and setting fire to things happened often enough not to stick out in his memory the way that Suki's object lesson about feminism and her giving him his Sacred First Kiss did.
- Played nearly straight when Katara finally tracks down the man who murdered her mother when she was a child. At first, he has no idea what she's talking about, but recalls it clearly after Katara jogs his memory.
- Princess Azula shows herself to be this type of villain when her plan against her brother begins to take shape in Season 3. You can almost see her going through the exhaustive list in her head of My-Diabolical-Plots-Against-Zuko.
- The Simpsons:
- "The Great Louse Detective" is an entire Episode showcasing Homer's tendency for falling into this trope. When an unknown assailant makes several attempts on Homer's life, a baffled Chief Wiggum enlists Sideshow Bob to help solve the case. Bob asks Homer who might have reason to harm him, and Homer answers with a comically Long List—which includes a former US President and the Emperor of Japan. Realizing the futility of that line of questioning, Bob sets up a decoy Homer dummy as bait. The dummy is immediately and brutally attacked in quick succession by Moe, Patty and Selma, Groundskeeper Willie, Reverend Lovejoy, and Homer himself.Sideshow Bob: None of this seems odd to you?
Homer: Oh, yeah! How is ol' Grimey?
- Also, the perpetrator turns out to be Frank Grimes Jr., the son of perpetual butt monkey Frank Grimes seeking revenge for his father's death. Homer barely remembers the incident.
- Exaggerated between Homer and Mr. Burns. No matter how many messed up, idiotic, and catastrophic things Homer does...Mr Burns still can't remember the name of that buffoon from Sector 7G.Smithers: That's Homer Simpson, sir. All of the recent events in your life have revolved around him in some way.
Mr. Burns: Simpson, eh?
- The "Who Shot Mr. Burns?" two-parter took this to extremes, with Homer breaking into Mr. Burns' office, spraypainting I AM HOMER SIMPSON along his walls in huge neon green letters, and Mr. Burns' response is, "Who the devil are you?" This pushes Homer's Berserk Button.Homer: (strangling Mr. Burns) HOMER SIMPSON! HOMER SIMPSON! MY NAME IS HOMER SIMPSON!
Mr. Burns: Smithers, who is this idiot strangling me?
Homer: SHUT UP!! HOMER SIMPSON!!
- This actually bites Homer in the butt. When Mr. Burns regains consciousness after being shot, all he can say is "Homer Simpson" over and over, which initially leads people to believe Homer was the shooter. Though ironically, he still doesn't recognize Homer.
- Parodied/inverted in "Treehouse of Horror XII":Fortune Teller woman: How's that curse I cursed you with, Cursed-y?
Homer: I know you don't remember me, but...
- This exchange in "She of Little Faith" after Homer accidentally destroys the town church with a homemade rocket.Marge: This is the worst thing you've ever done!Homer: You say that so much it's lost all meaning.
- "The Great Louse Detective" is an entire Episode showcasing Homer's tendency for falling into this trope. When an unknown assailant makes several attempts on Homer's life, a baffled Chief Wiggum enlists Sideshow Bob to help solve the case. Bob asks Homer who might have reason to harm him, and Homer answers with a comically Long List—which includes a former US President and the Emperor of Japan. Realizing the futility of that line of questioning, Bob sets up a decoy Homer dummy as bait. The dummy is immediately and brutally attacked in quick succession by Moe, Patty and Selma, Groundskeeper Willie, Reverend Lovejoy, and Homer himself.
- Lampshaded by Eugene in "Rapunzel and the Great Tree" episode of Tangled: The Series when he becomes accustomed to the adventures he's experienced alongside Rapunzel:Eugene: Two years ago, I'd call fighting jackal monsters on the back of a speeding carriage whilst a rhinoceros chases the woman I love absolutely bonkers. Now I call it Tuesday.
- In The Spectacular Spider-Man, Mysterio is disappointed that Spider-man doesn't remember him.Mysterio: Don't pretend you've forgotten. I was the Chameleon's right-hand man!
Spider-Man: Oh, right. On the boat! You were...You were dressed as the crewman!
Mysterio: As the waiter!
- Speaking of whom: The version of Quentin Beck from Spider-Man: The Animated Series became Mysterio to get revenge on Spidey for exposing an unethical stunt he pulled while shooting a movie. He doesn't mention it at first, but when he does, Spidey has no idea what he's talking about until Lieutenant Terri Lee looks it up.Beck: (in flashback) They'll arrest me for this, and it's all your fault! I will get you, I swear!
Lee: (in present) This is something you have trouble remembering?
Spidey: Hey, I hear that kinda thing...two, three times a week!
- Ben 10: Ultimate Alien provides a heroic example. In Ben 10, Zombozo was a creepy Emotion Eater whom Ben was absolutely terrified of. When the Monster Clown reappears 6 years later as the leader of a Villain Team-Up, Ben claims he doesn't even remember him ("We've fought him before?"). Dwayne McDuffie has stated that Ben actually does remember, but doesn't want to admit he used to be scared of clowns.
- Also, in Ben 10: Omniverse, with Billy Billion, a former classmate who was envious of Ben when they were eleven years old and tried to zap Ben in Dimension 12, resulting in him ending up trapped in that dimension after he tried to shoot at Diamondhead. Turns out Ben not only doesn't remember him, he wasn't even aware of his existence.
- In Justice League Unlimited, Deadman, possessing Wonder Woman, beats the crap out of Devil Ray, telling him that he killed his mentor and friend.Devil Ray: You'll have to be more specific, lady. I've killed a lotta people.
- Although Devil Ray is kind of justified in being confused, since he didn't kill Wonder Woman's mentor.
- The Secret Saturdays, Argost is confronted by Drew and Doyle when they discover he was the Yeti that attacked their camp in the Himalayas and murdered their parents. His response?Argost: *smirks* Did I? Oh, there were so many in those days. One can hardly remember each individual scream.
- A heroic example occurs in the Codename: Kids Next Door episode Operation: BULLIES (a parody of Jurassic Park), where Numbuh Four does not remember giving Jerry Rassic the wedgie that destroyed his life back in first grade. Too bad Jerry now has a Wedgiesaurus Rex ...
- On Jimmy Two-Shoes, Jimmy finds out that Mr. Ten had been cursed by Heloise, he goes and confronts her about this. Being Heloise, she needs more information, showing Jimmy a long list of people she's cursed.
- The Avengers: Earth's Mightiest Heroes! gives us another heroic example:Chemistro: How can you not know who I am!? You punched me in the face!
Hawkeye: Sorry, that doesn't narrow it down much.
- The Venture Bros., Brock Sampson, with various characters from his past: "Do I know you?"
- Subverted when he meets 21 again in Season 3. He does recognize him, but decides to mess with him.
- In the Biker Mice from Mars episode "Hard Rock", the titular character is confronted by the Biker Mice, who hate him for destroying many cities on Mars... Except he destroyed too many places on too many planets to remember.
- Steven Universe:
- In "The New Crystal Gems", Connie is surprised that Lapis Lazuli can't remember how the latter once tried to drown the former.Connie: You almost drowned me when you tried to steal the world's water.
Lapis: (avoiding eye contact) I almost drowned a lot of people.
- It's shown Yellow Diamond is like this about planetary genocide on any planet except Earth and treats it more like a boring office job than a massacre of sentient organic life.
- Peridot's HeelFace Turn becomes official when she calls Yellow Diamond a clod to her face (well, over a visual communicator), a moment that she comes to take pride in. Thus, when she comes face-to-face with Yellow Diamond again (for real this time), she triumphantly asks:Peridot: Hey! Yellow Clod! Remember me?Yellow Diamond: ...No. (KO's her in one shot)
- Played for Drama in "Change Your Mind". When Steven asks Blue Diamond how many times she locked Pink Diamond in the prison tower and used her Emotion Bomb powers to make her cry, Blue Diamond thinks for a second and is promptly horrified to realize she has no idea, and now understands why Pink abandoned her.
- In "The New Crystal Gems", Connie is surprised that Lapis Lazuli can't remember how the latter once tried to drown the former.
- In Transformers: Robots in Disguise Overload encountered Bumblebee in the past and grievously injured him. In the present, Overload doesn't recognize Bumblebee, stating that he's taken on many Autobots and it can be hard to disseminate them. Though in Bee's case he admits a familiarity and tries to remember when they clashed, but ultimately the memory escapes him.
- My Little Pony: Friendship Is Magic: In "Make New Friends But Keep Discord", during their second meeting, Discord is outraged when Tree Hugger doesn't recognize him in spite of his infamy and unique appearance. Tree Hugger says she's traveled all over the world and met many strange looking individuals, so he didn't really stand out. It doesn't help that Tree Hugger is pretty blatantly stoned out of her mind through the whole episode.
- Samurai Jack: Aku has shades of this, best shown in the episode "Jack vs. Aku." While Jack considers it his life's mission to destroy Aku and treats their battle with the utmost seriousness, Aku considers their conflict to be nothing more than just some kind of game, one that's gotten a bit long and tedious for him. However, come Season 5 Aku has gone from finding it tedious to nightmarish, having been reduced to a Nervous Wreck after exhausting every single method he possibly could trying to kill Jack, including letting time handle things for him, and hiding in his castle so Jack can't kill him.
- Aku is ultimately surprised at the existence of Ashi because he was doing little more than jokingly humoring the Cult of Aku with a gift, when he paid them a visit. He really has to think back to remember doing it, too. Before that, he didn't even recognize the Scotsman as being one of his main enemies, even when he clearly had the means to harm him. All this chalks up to Aku having a rather poor memory.
- The Grim Adventures of Billy & Mandy used this in the episode "Nigel Planter and the Order of the Peanuts", where Nigel Planter is incensed that Dean Toadblatt doesn't remember him and Toadblatt explains that he torments thousands of students every semester and can't be expected to remember them all.
But For Me It Was Tuesday / Western Animation