Earl "The Terror" Thompson is a character in Monsters University. He is a blue monster with four eyes and a dark blue mustache resembling himself a tarantula. He was a famous scarer working at Monsters, Inc., who had a particularly long career, continuing to scare at old age.
He appears two times in the film: a younger Earl can be seen during the prologue during young Mike's field trip. Much later, the OKs see him during their "field trip" to Monsters, Inc.