"He had a short disagreeable kind of unmirthful laugh, which came in at all sorts of odd times when nobody else saw anything to laugh at at all, and which sometimes made people start again, especially when they were being shaved, and Sweeney Todd would stop short in that operation to indulge in one those cacchinatory effusions. It was evident that the remembrance of some very strange and out-of-the-way joke must occasionally flit across him, and then he gave his hyena-like laugh, but it was so short, so sudden, striking upon the ear for a moment, and then gone, that people have been known to look up to the ceiling, and on the floor, and all round them, to know from whence it had come, scarcely supposing it possible that it proceeded from mortal lips."
— The String of Pearls: A Romance says this about Sweeney Todd
Snarky! Hawke: I'd really like to know who this Corypheus is. With a name like that, he's bound to go "mwa-ha-ha" at some point.
Isabela: A man of ambition. I bet he has a sinister laugh...
"Despite its proven stress-relieving effect, I will not indulge in maniacal laughter. When so occupied, it's too easy to miss unexpected developments that a more attentive individual could adjust to accordingly."
— Evil Overlord List #20
"I find her happiness quite disturbing."
— Sasuke Sagara (on Melissa Mao's Evil Laugh), Full Metal Panic!
"He sees the lighter side of everything!"
— Running gag on Mystery Science Theater 3000
"Makes you want to laugh, doesn't it, Artie?"
— The Joker, Batman: Mask of the Phantasm
"It'd be funny if it weren't so pathetic.
... oh, what the heck, I'll laugh anyway! Uwhahahaaa!"
— The Joker (having discovered the identity of Batman), Batman Beyond: Return of the Joker
"A lot of guys ignore the laugh. And that's about standards. I mean, if you're going to get into the Evil League of Evil you've got to have a memorable laugh. What, you think Bad Horse didn't work on his whinny? His terrible... death... whinny?"
— Dr. Horrible, Dr. Horrible's Sing-Along Blog
"Hahahahahahahahahaha! Wow. Haven't had a good maniacal laugh in weeks."
— Thailog, Gargoyles: the Comic
"Only three more chambers 'til your big surprise! Ahahaha! Ahahahaha! AHAHAHAHAHAHAaah that's tiring."
— Wheatley, Portal 2
Tak: Muahaha... Muahahahaha... MUAHAHAHAHA!!!!
Zim Yes, yes, I'm a master of comedy. Now tell me your plan!
"Forgive me a cruel chuckle..."
— Prince John, Robin Hood
"Erik's laughter started off as a deep quiet chuckle, then grew louder and more frightening as it began to crescendo, filling the room with its evil presence, and causing Erik to stumble back against the wall with the sheer force of his malicious glee."
— Emperor Phantom Of Krankor, doing a notably cheesy edition in a film featured on Mystery Science Theater 3000
Flonne. Ever since you have become the Overlord, you have done nothing but laugh.
Laharl. You don't understand a thing. Laughing is a very important aspect of being the Overlord.
"The trick is to think of your favorite joke while you sentence people to death, only don't tell the joke out loud... The last thing people about to be dunked in molten lead want to hear is the one about the Englishman, the Irishman, and the Altroxian!"
Hades: Hey, what's with the laughing?
Jafar: Well, it's a flourish. It punctuates my evil. (continues laughing)
"All that upper body strength AND a killer evil laugh!"
— Jack Spicer on Raksha, Xiaolin Showdown
"Heh … HAHA! It's times like this I wish I had a more maniacal laugh!"
— Dr. Universe, Spinnerette
CABAL: The Brotherhood is at an evolutionary dead-end. I am the only salvation for the continued supremacy of Nod. It is MY world now.
Slavik: CABAL, stand down!
CABAL: Listen to the sounds of your own extinction, human...
— Command & Conquer: Tiberian Sun: Firestorm
Thief: Did he just go "mwa ha ha ha"?
Red Mage: It was more of a "mu hu".
Fighter: That was not a good guy laugh.
"If you want my advice, you should probably start sparing the sinister laughter. It loses its punch after a while."
— Emperor Mollusk vs. the Sinister Brain
"Take one last look at your shining Heaven, Imperius...for soon, nothing shall remain of it but my laughter!"
— Diablo, Diablo III
"I will rule this world and plunge it into darkness, so that I don't have to be alone in my misery. Ahahahahahaha—Wait a minute! What am I laughing at!? I'm supposed to be depressed!"
— Apocalymon, Digimon Adventure
He threw back his head and laughed; I admit, that sound was so cold and diabolical if I'd have been able to piss myself right then, I would have.
— Hand of Glory by Laird Barron
"Now that was an evil laugh!"
— Zarok, MediEvil: Resurrection
"Oh I'm sorry, you probably can't see the funny side of it."
He who laughs last laughs longest, and I happen to have a really good laugh.
— Doctor Impossible, Soon I Will Be Invincible
Max: Well we can be thankful for one thing.
99: What's that, Max?
Max: Whoever captured us has a terrific sense of humor.