Hammerhead, Hoof and Mouth
Hammerhead Hannigan, Hoof and Mouth are the henchmen of Taurus Bulba in the Disney animated series Darkwing Duck. They first appeared in the two-part pilot television special, Darkly Dawns the Duck, and Hammerhead went on to appear in one more episode, In Like Blunt.
Despite only appearing in three episodes, Hammerhead, Hoof and Mouth along with their boss Taurus Bulba are pivotal villains in Gosalyn's story arc since it is implied that they accidentally killed her grandfather, Professor Waddlemeyer, during a botched attempt to steal his invention, the Ram Rod. They steal the weapon from the military for their boss, and later attempt to capture Gosalyn. While somewhat inept, they remain credible threats to both Gosalyn and Darkwing throughout Darkly Dawns the Duck due primarily to their large size and the fact they are some of the few villains in the series to freely wield firearms.
Hammerhead Hannigan
The leader of the trio, Hammerhead is a surly goat wearing a pinstriped suit who talks and acts like a stereotypical 1930s gangster. His gimmick is that he uses his head as a blunt object to headbutt his enemies. He appears to be based on the Marvel Comics villain Hammerhead (an enemy of Spider-Man), although a Three Stooges reference suggests he may also have been inspired by Shemp Howard's character named Hammerhead in The Invisible Woman. Of Taurus' henchmen, Hammerhead is the only one who went on to appear in a third episode: he was shown briefly in the episode In Like Blunt. In Darkly Dawns the Duck Hammerhead was voiced by Hal Rayle, while in In Like Blunt he is, reportedly, voiced by series writer Tad Stones.
Hoof
A lanky, bucktoothed donkey with red hair and a green fedora, Hoof is possibly the least intelligent of the three. Both he and Mouth wear bowties (which adds to their already humorous appearance) and are exceptionally clumsy, and often physically abused by Hammerhead. Hoof is apparently a mute because he never says a single word in either of the episodes he appears in, apart from the occasional grunt. It is not known which voice actor did these vocalizations however.
Mouth
Slightly smarter than Hoof is Mouth, a ram wearing a red bowtie and a driving cap. Their combined names are a pun on hoof and mouth disease. Whereas Hoof is eternally silent, Mouth, conversely, has an apparent speech impediment which makes him talk very rapidly and repeat almost everything he says. He is the smallest of the trio, yet still bigger than Darkwing as seen during his confrontation with him aboard Taurus' airship. He was voiced by Eddie Deezen.