Corpsing / Western Animation

• Happened to Madeleine Peters (Scootaloo) in episode 18 of My Little Pony: Friendship Is Magic during the cringe-worthy rendition of the Cutie Mark Crusaders' Theme Song. It's hard to catch because it's somewhat covered up by a fan.
• Voice actor giants Frank Welker and Peter Cullen got in on this during the run of The Transformers, though it was one-sided (and amusingly, instigated by the one who played the evil leader). Apparently one of Frank's goals while playing Megatron was "to get Peter to laugh water out of his nose."
• Batman: The Animated Series:
  • The memorable episode "The Man Who Killed Batman" where Joker holds a funeral for his rival, complete with Harley Quinn playing Amazing Freaking Grace on a kazoo. Harley's voice actress Arleen Sorkin actually did the kazoo herself, and reportedly they had to do this bit (and Joker's follow-up line "Well, that was fun! Who's for Chinese?") in one take because the entire cast was laughing too hard to try again.
  • Another one pops up in "The Strange Secret of Bruce Wayne" where Hugo Strange calls the Joker and gets his answering machine message where he's asked to "leave his message at the sound of the shriek" and it cuts to a screaming man begging for his life. You can clearly hear the guy trying not to laugh as he does it, and it was presumably thrown in given The Joker's tendency to use gas that makes people laugh themselves to death to kill his victims, which makes it all the more chilling. You can tell the laughter is genuine rather than scripted as it's not the pained and hysterical laugher usually associated with Joker Venom.
• The legendary ThunderCats BlooperReel has several instances of the actors cracking up mid-line, such as Lion-O stumbling over his lines before remarking "What the fuck am I even talking about?!"
• Daria had a moment which didn't occur in the show itself but on one of the six answering machine message tapes given to fan C.E. Forman during MTV's Cool Crap Auction in 1999, which were personalized and read by Daria herself. The third one ("Hey, it's Daria Morgendorffer. Whenever I'm in Peoria, I like to answer Chris's phone calls. It's how I get my jollies. How do you get yours?") had Tracy Grandstaff (Daria) laughing while saying "Peoria".
• Rick and Morty: The episode "Rixty Minutes" has Rick tuning the TV so as to get channels from parallel universes. It's quite evident that several if not all of these shows and commercials were improvised by the voice actors on the spot, and they don't even bother to cover the fact that they cracked themselves up with it.
  • As seen in the first clip, the titular characters are even kind enough to lampshade it beforehand.
    Morty: Huh, seems like TV from other dimensions has a somewhat looser feel to it.
    Rick: Yeah, it's got an almost improvisational tone.
  • Happens twice in the 'State of Georgia Vs. Denver Fenton Allen' Rick and Morty parody skit. The first time is when in the middle of the video Justin breaks character out of Morty for a moment when he's unable to contain his laughter over the absurdity of the argument with the accused Rick. Then again with Rick when he threatens to murder the judge's kids and he cracks up right at the end of the line about 'knocking their brains out with a hammer'.
• In the Clip Show from near the end of The Legend of Korra, when Varrick's fictionalized retelling of the show gets to the part where all the villains get together on a conference call, it's obvious Henry Rollins is struggling not to laugh as he delivers Zaheer's lines, and you can even hear what appears to be someone laughing outright in the background. This was all left in, probably because the scene isn't remotely serious and is in fact very "meta".
• On episode 41 of Animaniacs, during the "Good Idea, Bad Idea" segment, narrator Tom Bodett (yes, he of the Motel 6 "We'll leave the light on for you" ads) clearly cracks up when delivering the line "Bad idea: Whistling while you eat."
• Family Guy
  • A famous Cold Open portrays Osama Bin Laden trying to record an anti-American propaganda video, but breaking up into laughter when he mispronounces a word. He's unable to regain his composure and eventually degenerates into outright clowning. Then Stewie shows up and kicks his ass.
  • In "Hannah Banana", Peter and Chris have an intense back-and-forth over breakfast when Chris starts spending too much time with the evil monkey:
    Peter: Well, according to him, that stupid monkey's more of a father to him than I am!
    Chris: He makes time for me and you never do! You're supposed to love me and all you do is hurt me!
    Meg: This morning I had a hard poo that hurt, but then it felt great.
    Peter: Meg, I'm tryna be mad right now, but that's making me wanna smile.
  • In "Don't Make me Over," Peter beats up Jimmy Fallon for constantly ruining Saturday Night Live sketches by looking at the camera and cracking up. While beating Fallon, Peter mentions that Carol Burnett used to do the same on her show but Fallon “hasn’t earned what she earned!” As an added bonus, Fallon actually laughs and looks at the camera every single time he is onscreen in the episode itself.
• You can occasionally hear characters on Bob's Burgers giggle or chuckle a bit while responding to funny dialogue. Those moments are the actual voice actors trying not to laugh and are left in because it feels more natural than having a character respond to a joke without laughing (unless the seriousness is funnier).
• During recording sessions for The Perils of Penelope Pitstop, it's been said that Paul Lynde (the voice of Sylvester Sneekly/The Hooded Claw) would constantly cause the other voice actors (Janet Waldo, Gary Owens, Mel Blanc, Don Messick, Paul Winchell) to go into fits of laughter with his hammy line deliveries and his over-the-top Evil Laugh.
• During the commentary version of Mr. Incredible and Pals, you occasionally hear Mr. Incredible stifle laughs when trying to respond to Frozone's outbursts. It was thrown in because it's absolutely in character.
• On The Simpsons during the gross-out contest in "They Saved Lisa's Brain", you hear the KBBL DJ Marty (voiced by Harry Shearer) corpse out loud at the punny name of Homer's act, which involves him attempting to dance erotically while popping a bodysuit made of popcorn kernels.
  Marty: Next up, Homer and his amazing Redenbacher Dreamcoat... with a number he calls "Kernel Knowledge".
• Done In-Universe on Beavis And Butthead in the aptly-titled "No Laughing", where Principal McVicker decides to punish them for their constant laughing by forcing them to go a whole week without even so much as a chuckle, and if they do laugh they'll be "sent to Hope High School where they'll get their asses kicked on a daily basis by all the other delinquents." This leaves them at the mercy of Mr. Buzzcut who, of course, is deliberately trying to get them to laugh by teaching Sex Ed that week and getting right in their face about it. Amazingly, the duo actually pulls it off and makes it out of the school... where they erupt in pained laughter like a seizure.
• During the episode "The Dressing" on Aqua Teen Hunger Force, there's a scene where Shake is trying to watch TV while Turkatron, already drunk, is going on a drinking binge. Shake's voice actor ends up corpsing as he tells Turkatron to "guzzle it down" after the robot's latest nonsensical ramblings.
  • In the Brazilian dub of "Revenge of the Trees", Master Shake's voice is stifling laughter after the line "I have yet to see a welfare check".
• One episode of Clone High features The Pusher, who offers to sell JFK raisins by the scoop. JFK dryly, in that voice, asks for "TWO PLEASE", and The Pusher's voice actor Jack Black absolutely dies. Christopher Miller does a valiant job keeping in-character as JFK laughing, but it's obvious Jack Black has completely broken character and is just crying laughing in his own voice. They Threw It In because it ended up being one of the funniest bits in the entire episode.
• In 12 oz. Mouse, there is a stoned peanut cop who always bursts into laughter.

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