The Animaniacs are a group of siblings who live in the water tower on the WB studio lot. They break loose regularly, despite the security guard and the CEO's constant attempts to keep them at bay. Once loose, they wreak havoc on the lot, causing mayhem and devastation all over the place, all in the name of fun and good times. Yakko, the oldest, is chatty and clever, always quick-thinking and able to get the kids out of a tight spot. Dot, the youngest (and the only girl), is adorable, and she'll let you know it. Wakko, the middle, is a rapacious eater and is constantly snacking. He's a little crazier than the other two, and a little less bright, but he is a sweet guy and underneath that backwards red cap is the head of a hero. He's unrequitedly in love with the Studio Nurse, and along with his brother and sister, he endlessly harasses the Studio Psychiatrist, Dr. Scratchensniff.
Wakko has been known to perform entire classical pieces by belching, and is prone to potty emergencies, but he has a vast and spot-on knowledge of the US states and capitals...
Wakko is voiced by Jess Harnell.
Wakko: Why does Mr. Plotz want to see me?
Dr. Scratchensniff: Because you ate his conference table, Wakko.
Wakko: But I was HUNGRY.
(Wakko & Scratchensniff are trapped in an elevato)
Wakko: Wanna hear a knock-knock joke?
Dr. Scratchensniff: Ok.
Dr. Scratchensniff: Who's there?
Dr. Scratchensniff: Max who?
Wakko: Max wants to come in an' go crazy.
Dr. Scratchensniff: See, that's not funny because it's not really a joke.
Wakko: It is if you know Max.
Dr. Scratchensniff: But I DON'T know Max.
Wakko: If you did you'd be laughin'!
Mr. Director: Hoyl! How'd you... with the going... you were there... but here now... you are... for me to see... how'd you do...
Yakko: You understand any of that?
Wakko: I think he said: "Hoyl! How'd you... with the going... you were there... but here now... you are... for me to see... how'd you do...
Yakko: Thanks for clearing that up.
Arch Bishop: King Yakko, your throne.
Wakko Warner: The throne? How do you lift the lid?
Dot: Since when do you lift the lid?
Wakko: Hey, mister, what's this?
Ivan Bloski: A vomit bag.
Wakko: Ah, poo. I got gypped. There's none in here.
Wakko: So what are we going to get Dr. Scratchy?
Dot: Ooooooh, how about an outfit from Oedipus Rex Men's Wear?
Yakko: Nah, his mom would hate those.
Yakko: Call it a hunch, sibs, but I think we've been abducted by aliens.
Dot: Aliens? What'll we do?
Wakko: Go find the cafeteria?
Yakko, Dot: Yeah.
Wakko: Can you pull a rabbit out of your pants?
Wakko: Dear Santa, I have been ever so good this year. I would like a new mallet and a shiny brass anvil.
Wakko, Yakko: We're the Warner brothers.
Dot: And the Warner sister.
Wakko: Wanna see me make bubbles with my spit?
Yakko: Sure do. In fact, that's the theme of our next show.
Dot: So don't miss it!
Wakko: I'm not wearing any pants!
Wakko: (after trying to play Beethoven's hearing aide as if it were a brass instrument) Where's the mouth piece to this thing?
Beethoven: It's in my ear.
Wakko: THAT'S REVOLTING!
Wakko: Maybe you should see a P-psychiatrist.
Dr. Scratchensniff: I AM a P-psych... I mean, a psychiatrist!
Dr. Scratchensniff: What is on your mind?
Wakko: My hat.
Dr. Scratchensniff: No, your hat is on your head. What is on your MIND?
Wakko: My... skin?
Dr. Scratchensniff: No, that's on your head. What is on your MIND?
Wakko: Oh, I got it! My hair!
Dr. Scratchensniff: Your hair is on your head! (tears off some of his hair) THIS IS HAIR! THIS IS HAIR! IT'S NOT ON MY MIND! IT'S ON MY HEAD!
Wakko: No, it's in your hand.
Girth Plotz: (after Wakko eats his paperweight) Give me back my paperweight!
Wakko: Okay, but you'll have to wait a while.
Miss Flamiel: Wakko, what is the meaning of the word, "procrastination"?
Wakko: I'll tell you tomorrow.
Wakko, Yakko: Helloooooo Nurse!
Wakko: Potty emergency!!!
Wakko: I can't go potty in there, it's disgusting!