South Park: If the characters sing a song in the episode, it is almost always played over the end credits.
Season Six has Timmy fill in for Kenny in singing the theme song since Kenny was absent for that season.
Canadian broadcasts on commercial TV include a disclaimer warning of adult content — which is immediately followed by "South Park's" own tongue-in-cheek version.
In the Hungarian credits, the voice actors and various other members of the dubbing studio are referred to by comical nicknames, save for the production manager, who has his actual, full name given. But since the most recent dubbing team doesn't have one, they simply end the credits with "Production Manager: there was none". Back when the dubbing was done by HBO, they also liked to pronounce it as "hábéó".
The special thanks credit originally read "Chef's Band Thanks". After Chef's death, it was changed to the standard version, starting with "Smug Alert!".
The Braniff sign at the end of the credits was used for fun in the first episode; Braniff is originally an airline. Trey Parker and Matt Stone got permission to use the sign for every episode.
Also, one crew member has the position "EIEIO" ("Email, Internet, Electronic Information Officer").
In the episodes 'Do the Handicapped Go to Hell?' and 'Probably', the credits say both Gary Nicholson and Jack Oldman did the voice for Satan's new boyfriend Chris. (It was actually Parker and Stone's frequent co-star Dian Bachar).
The episode "Trapped in the Closet", which made fun of Scientology and implied that R. Kelly, John Travolta and Tom Cruise are gay, ended with Stan daring the three to sue him. "Do it. Come on, I dare you!" It then cut to credits in which everyone was listed as either John Smith or Jane Smith.(However, the episode was nominated for an Emmy, where the episode's writers and directors were named.)
The credits of "Deep Learning" list the AI chatbot ChatGPT as one of the writters alongside Trey Parker, although it's can technically be true since the end of the episode was written using the aforementioned AI.
Count Duckula usually had a spoof name and/or role in the end credits.
Bambi Meets Godzilla, a short cartoon written by Marv Newland, with screenplay by Marv Newland, choreography by Marv Newland, Bambi's wardrobe by Marv Newland, and was produced by Marv Newland, who was produced by Mr. and Mrs. Newland, is an early example of this, being made way back in 1969.
Animaniacs always had a different gag job for Katherine Page in the credits such as Llama Tamer or Insincere Laugher.
Many episodes of Animaniacs also had various gag credits mixed in with the normal credits. For example, at least one episode had the following credits immediately after the credits for Color Key:
The "65th Anniversary Special" (really the show's 65th episode) had a TON of fake credits, including the ones above. For example...
Mark Up: Jean DuBois, Lisa Leonardi, Valerie Walker and Clint Walker as Cheyenne Mark Down:Goof Troop tapes at K-Mart
About a minute into the Garfield and Friends (U.S. Acres segment) cartoon "The Return of the Incredibly Stupid Swamp Monster", Wade drags the title screen onto the "set" and asks Orson what the title means. (Orson replies, "I guess it means the Incredibly Stupid Swamp Monster is returning. (Later the Mad Scientist antagonist confronts Wade and demands to know where the monster is; Wade replies "Uh, probably at the farm, seeing as this episode is about him.") The episode this is a sequel to also used a gag like this, but it was about Roy and Wade questioning the episode title.
"The Bear Facts" used the same gag above when Garfield wonders what dangers could be in the forest on their camping trip.
Wade did the same gag in the first scene of "Orson Goes On Vacation" upon seeing the title of the episode. He panics over the title. After pushing the title card away, Wade asks Orson why the episode is called this, and even tries to prevent him from leaving.
The early Bugs Bunny cartoon Tortoise Beats Hare has Bugs walk in front of the credits after they appear, and read them out loud (mispronouncing most of the names). When the full import of the title dawns on him, he chokes on his carrot and tears up the credits in disgust.
Bugs: Why these story guys don't know what they're talkin' about! Why them big bunch of joiks! (to the audience)Eh, I oughta know. I work for 'em.
Wabbit Twouble has all the cwedits — er, credits — written out in Elmer Fudd-ese: the "diwector" is "Wobert Cwampett", the music is by "Cawl W. Stawwing", etc.
The Old Grey Hare: After the film irises out when Bugs hands Elmer the stick of dynamite, the ending title card violently shakes when the bomb goes off. Most TV versions replace the shaking card with one that doesn't shake (though the sound is still there). Cartoon Network was one of the channels that aired this cartoon with the non-shaking end card, but The Bob Clampett Show actually aired it the way it was meant to be.
Later on, the Looney Tunes cartoon "Robin Hood Daffy" has the credits written on flags tied to arrows fired at targets.
Tex Avery MGM Cartoons: The short Batty Baseball cuts right to game action after a brief title card. After a minute or so one of the players stops en route to home plate, turns to the camera, and angrily addresses the play-by-play announcer: "Hey, wait a minute. Didn'tcha forget somethin'? Who made this picture? How 'bout the MGM titles, the lion roar and all that kinda stuff?" The announcer apologizes, and the credits run as normal.
Midway through the Screwy Squirrel short The Screwy Truant, The Big Bad Wolf pops up out of nowhere chasing Little Red Riding Hood. Screwy stops the Wolf to tell him he's in the wrong picture, then pulls the opening credits back onscreen to prove it.
The Venture Bros. gave the animation director for the first five seasons, Kimson Albert, a different nickname in the credits of each episode. The nickname is always a reference to a line from the episode before that one (leading to such credits as "Kimson 'Retard Strength' Albert.") This practice moved over with Albert to OK K.O.! Let's Be Heroes.
On season premiere episodes, the show's opening credits feature a variation on the two brothers running in silhouette - Season 2 showed Rusty and Jonas to suggest that Hank and Dean were really dead and gone for good.
In Codename: Kids Next Door, all the cast and crew have the true name of their role in production replaced with a military version (i.e., "head writer" to "head writer of wrongs").
Robot Chicken: In every episode Sarah Michelle Gellar, Mila Kunis, and a random crew member who changes every season receive goofy special credits for a reason that isn't especially clear.
The fourth season's first ten episode titles forms the message: "Help me. I'm trapped in a DVD factory. They took my thumbs. Two weeks without food. Tell my mom I love her, but not in that way. Love, Maurice. PS: Yes, in that way."
The fourth season's last ten episode titles forms the factory's response: "Dear Consumer, we are a humble factory. Maurice was caught unionizing our labor. President Hu forbids it! Due to constraints of time and budget, the ramblings of Maurice cannot be erased, so sorry. Please do not notify our contractors. Especially the animal Keith Crofford!" (The titles got scrambled due to release date/production schedules)
Every credits for Sealab 2021 ends with some anagram of Mike Lazzo, one of the executive producers.
The teaser for the Kim Possible episode "The Ron Factor" ends with Kim being surprised that the scientists want to investigate the possible influence Ron has on her brilliance - cut to the opening title sequence, during which Kim lifts up the screen to say what we're all thinking: "No, seriously - you need Ron?"
The credits at the beginning and end of each episode of Santo Bugito would have the cast members' names altered to be insect-themed, such as Mark Mothersbug (Mark Mothersbaugh), Gabor "Big Bug" Csupo, and Arlene "Honey Bee" Klasky.
Starting in the second season, flashes of what appear to be pages from one of the Journals start appearing after the credits, with more ominous codes on them. These pages fit together into a larger puzzle.
WHEN ONE GETS TRAPPED INSIDE THE PAST DREAMS CAN TURN TO NIGHTMARES FAST
In the three-part "Weirdmageddon" finale, the opening credits say "Created by Bill Cipher", the main villain in the finale, instead of the show's actual creator, Alex Hirsch.
Phineas and Ferb: The closing credits for "Wizard of Odd" and "Excaliferb" list the characters' names as in Candace's dream sequence and the historical period, respectively. In the former, a running gag is that Doofenshmirtz, the Wicked Witch character, insists on being called "warlock"; in the credits, his name is written as "Doofenwitch WARLOCK", with "witch" crossed out and "WARLOCK" in a handwriting-style font.
In "Mommy Can You Hear Me?", cosmonaut Sergei is credited as being portrayed by "Swampyski Marshkarov."
The second season of Mike, Lu & Og credited the song performances to the Albonquetine National Orchestra & Chorus.
The Grim Adventures of Billy & Mandy: The show's end credits theme ends with a few seconds of bizarre gibberish. This is actually a backwards message from creator Maxwell Atoms; if you realize this and reverse the audio to make it intelligible, he'll lightly admonish your actions as that of a confused television viewer.
"No, no, this is the end of the show. You're watching it backwards."
Stop-motion series The Trapdoor listed among its credits a position known as "Thing Doer".
Animated short film Anna and Bella starts the credits with the words "Filmed on Location".
Much like the other 1990s Warner Bros. cartoons listed here, Histeria! had humorous phrases hidden in the end credits. For example, "Really Oldies but Goodies" had "No cats were mummified in the making of this episode". The episode "Super Writers" also had unique end credits that consisted of two group photographs each of the writers, animators, voice actors, and so on (one normal, one with funny faces) which were reused in "Big Fat Baby Theater", albeit followed by normal end credits.
Steven Universe: "Last One out of Beach City" ends with a series of joke credits before the real ones for the episode:
Filmation did this in a few of its cartoons for it executive producer Lou Scheimer:
He-Man and the Masters of the Universe (1983) has the names of Lou Scheimer and Hal Sutherland (production consultant) appear when He-Man smashes down a wall. Sutherland's credit transforms into the Sorceress, going along with He-Man's narration.
Val: Woo-hoo! You watched all the credits. That makes you a true MIFTer.
Fritz: MIFTer!
The Hungarian dub of the obscure British-Hungarian co-produced Rubbish, King of the Jumble ended each episode with the voice actor of Rubbish the cat Breaking the Fourth Wall and comically listing the members of the production crew (which is pointless as their names are on the screen anyway), while doing ad-libs like rambling about his working conditions and the show's quality.
Young Justice (2010) generally only credits the identities that appear — e.g. Nolan North is credited as "Superboy" if he's shown being a superhero, and "Conner" if his story is set entirely at Happy Harbor High. For the episode "Performance", in which the Team are undercover at Haley's Circus, they are all credited under their cover identities as the Daring Dangers.
Oddballs lists "People who read credits ♥" as the last entry of Special Thanks.
High Note: The "D" in "Directed by Chuck Jones" is drawn to look like a musical note.
The 2005 Gerald McBoing-Boing reboot lists the show's main sound editor Glenn Barna as the "voice" of the titular character in the cast list, which is referring that Gerald doesn't speak words, he instead speaks sound effects.
. It's not even in English!