Madcow

Madcow is a character who appears in the Cartoon Network animated series Ben 10.

Description
As his name might suggest, Madcow is an anthropomorphic cow. One of the Alpha Mutants created by insane geneticist Dr. Amino, Madcow is equipped with a mechanical harness which is capable of extending six flexible appendages out to a considerable distance and electrifying them using his back-mounted generator. He may also possibly possess a degree of superhuman strength.

History
As one of the Alpha Mutant guards tasked with watching over Dr. Animo's Accidental Mutant slaves, Madcow was bested by the prisoners when young hero Ben Tennyson, in his guise as Stinkfly, persuaded the group to fight back against their captors.

Some time later, the villainous alien Vilgax gained control of the Alphas through a form of mind control and turned them against Ben and their creator Dr. Animo, but they were once again defeated by Team Tennyson.