Wiktionary
n. A stock character in popular fiction; a bumbling scientist working on unlikely ways to save the world, or a villainous one bent on destroying it.
Wikipedia
Mad scientist (also mad doctor or mad professor) is a caricature of a scientist who is described as "mad" or "insane" owing to a combination of unusual or unsettling personality traits and the unabashedly ambitious, taboo and/or hubristic nature of their experiments. As a motif in fiction, the mad scientist may be villainous (evil genius) or antagonistic, benign or neutral; may be insane, eccentric, or clumsy; and often works with fictional technology or fails to recognize or value common human objections to attempting to play God. Some may have benevolent or good-spirited intentions, even if their actions are dangerous or questionable, which can make them accidental villains.
Mad Scientist: Experiment in Error was a cartoon made to showcase the Mad Scientist toy line by Mattel Toys. It was produced in 1988 by Southern Star Productions, distributed by International Video Entertainment under the Family Home Entertainment line on VHS.
The film was direct to home video with a 30-minute run time consisting of two 15-minute cartoons. The cartoons featured Dr. Sy N. Tist and his ward Brian engaging in bizarre experiments.
Usage examples of "mad scientist".
She instantly recognized the voice of her favorite mad scientist, Dr.
Were whites created from blacks by a mad scientist, as the Nation of Islam asserts?
Sax, at the heart of it, was a stubborn secretive brilliant brain-damaged loose cannon, a bona fide mad scientist.
The only people present were three Aluwnans, one older female and one female who was quite young, plus a wild-haired male who looked like a typical mad scientist.
It all happened hi an out-of-the-way part of Cornwall, and it concerned the best example of that rare species, the genuine mad scientist, that I've ever met.
Beyond a thick sheet of glass, I see a room that resembles some mad scientist's laboratory.
I never imagined that being a mad scientist's experimental guinea pig could be so interesting.