Only characters from books (any kind), plays, short stories, etc…
Otis Spofford was throwing rocks anywhere he wanted to. But he threw one and heard an angry scream, then came face to face with a man in medieval clothes and holding a skull. Then…
…the medieval man spoke to himself for 30 minutes straight, talking about York, infinity, and jesting. He then gave the skull to Otis, who threw it in yet another direction, and this time Otis had hit a pretty little girl in a red hood who was walking through the forest. As Hamlet and Otis went to help her up, the little girl said:…
“I’m looking for the wolf! Quit throwing skulls at me!”
As Otis and Hamlet stood there, stunned by the girl, three men on dogsleds approached. One dog was named Buck, another was Spitz, and the third was White Fang. And an invisible man was seen nearby…
…mumbling softly to himself, “I do not like green eggs and ham! I do not like them, Sam I am!”
Right next to that man was a group of Scottish men, and they looked at Otis, the medieval man, and the little red-hooded girl. “Jamie Fraser! Your wife Claire is a healer, is she not?” Jamie, who was more than six feet tall and quite sizeable, nodded. “Think ye that she’ll be able to heal the wounds from the stramash that might occur?” “Aye, Dougal, I do.” So Jamie called to Claire, and…
…was startled by the approach of an old, battered jalopy with an Oklahoma license plate. “Which way to California?” asked the driver. Jamie shrugged. “I thought this was Scotland,” she said. As the car passed she smelled a horrid odor and saw what appeared to be the body of an old woman in the back. Otis, Hamlet, Jamie, and the others were revulsed, but they had little time for that; in the sky they saw, to their horror…
…a gigantic swarm of sparrows, thousands strong, that appeared to be escorting a small Volkswagon as it made its slow way down the path. The driver rolled down the window, spat out a feather, and announced: “Boy, I’m lost. Which way to Castle Rock?” Nobody knew, so he shooed some errant birds out of the car, rolled up the window again, and headed off in the same direction he had been going, swerving at the last second to avoid hitting…
(note to dougie_monty and everyone else: Jamie Fraser is a man)
That’s all I have to add for now… someone else can continue the story! 
…The Narrator, on his way between the paint factory and The Brotherhood.
Jamie, after symbolically rebuking dougie_monty for getting his sex wrong, asked the Narrator, Otis, Hamlet, and some others about a wooden whaling ship in the waters nearby. He could see, on the decks, a man with a hideous scar on the side of his face, and a wooden leg; a tattooed man dressed as a South Seas native and holding a harpoon; and another rather smug-looking man. Because of the distance, Jamie and the others naturally could not cleary discern what the sailors were saying; apparently the smug man was “Starbocks” or something like that. Then some giant light-colored thing rose out of the choppy waters and Otis commented that it must be…
…The great under-sea ship Nautilus, her steel deck plates gleaming in the moonlight! And riding on the conning tower like a cowboy on a horse was…
Ranchoth
…William Wallace, raising a sword and crying, “Freedom!” All at once, his head fell off, rolling down into the sea. It bobbed for a bit and then sank slowly, swaying with the tides, until it settled at the bottom. There, surrounded by…
Great White sharks that had been terrorizing the swimmers at Amity Beach, the head was snapped up by the Great White with the quickest reflexes.
Meanwhile, up on the surface, another ship appeared; this one with a Jolly Roger on the mast, and a one-legged captian who had a parrot perched on his shoulder and squawking, “Pieces of eight! Pieces of eight!” The captain, who was sick and tired of the parrot squawking right in his ear, growled that he would cut the parrot into eight pieces! The parrot panicked and flew toward…
Heathcliff, who was striding across a moor. He saw the parrot flying towards him and…
Shermlock Shomes, Dr. Whatsit, and Miss Pru’ Basketball, who were on a quest for the legendary “Hound of the Basketballs,” as recounted by Harvey Kurtzman and illustrated by Bill Elder. Shomes noted that a local dog was following him, because of a can of Red Heart Dog Food he was carrying. Whatsit and Miss Basketball returned from the moor, the Great Grimpen Moor, where they had heard a fat old woman hollering for Heathcliff. Otis, the Narrator, Hamlet, Starbuck, and the Joads looked on as a short man with a tweed suit and cap, a goatee, and a strange appendage approached the sleuthing trio and said, “Mr. Shomes…”