Pixar is a piker compared to the Wold Newton family.
The Wold Newton family is a literary concept derived from a form of crossover fiction developed by the science fiction writer Philip José Farmer. Farmer suggested in two "biographies" of fictional characters (Tarzan Alive and Doc Savage: His Apocalyptic Life), that the real meteorite (Wold Cottage meteorite) which fell near Wold Newton, Yorkshire, England, on December 13, 1795, was radioactive and caused genetic mutations in the occupants of a passing coach. Many of their descendants were thus endowed with extremely high intelligence and strength, as well as an exceptional capacity and drive to perform good, or, as the case may be, evil deeds. The progeny of these travellers were purported to have been the real-life originals of fictionalised characters, both heroic and villainous, over the last few hundred years, such as Sherlock Holmes, Tarzan, Doc Savage, and Lord Peter Wimsey.
Other popular characters included by Farmer as members of the Wold Newton family are: Solomon Kane; Captain Blood; The Scarlet Pimpernel; Sherlock Holmes's nemesis Professor Moriarty; Phileas Fogg; The Time Traveller (main character of The Time Machine by H. G. Wells); Allan Quatermain; A.J. Raffles; Professor Challenger; Richard Hannay; Bulldog Drummond; the evil Fu Manchu and his adversary, Sir Denis Nayland Smith; G-8; The Shadow; Sam Spade; Doc Savage's cousin Patricia Savage, and one of his five assistants, Monk Mayfair; The Spider; Nero Wolfe; Mr. Moto; The Avenger; Philip Marlowe; James Bond; Lew Archer; Travis McGee; Monsieur Lecoq; and Arsène Lupin.
Notably missing: Springheel Jack and Jack the Ripper.
(BTW There was a guy on Coast-to-Coast a couple nights ago flogging his book about Vincent Van Gogh being the latter)
And both are amateurs when compared to the Tommy Westphall Universe:
http://home.vicnet.net.au/~kwgow/crossovers.html
282 Television shows, and real life, are all tied together. Because they are tied together, they all actually exist only in the mind of Tommy Westphall, the autistic boy in the finale of “St. Elsewhere”.