Batty-Man (voiced by Allen Swift) is an evil vampire who commands a massive army of Giant Bats and lives in Belfrey Castle.
In "Batty-Man", he and his batty army have caused a crime wave nationwide. Underdog, the police, and everyone in the country were baffled because of these crime waves. The crime wave was arranged to make Underdog powerless enough so Batty-Man can't be stopped from pulling the crime of the century. Soon, Underdog found out Batty-Man was the crook behind the crime wave after Sweet Polly was taken captive. Underdog had to rescue her and had to defeat Batty Man, but failed and was captured. Batty-Man later planned to steal all the gold in Fort Knox and use them to go to Europe, by turning the gold into bowling balls. Underdog and Polly escaped before they could get turned into bowling balls and stopped Batty Man and everything was returned to its rightful owners.
Batty-Man was later freed from prison by Simon Bar Sinister. He, along with Riff Raff and Slippery Eel were enlisted to help Simon with his Vacuum Gun plan which Underdog later stopped.
In the 1987 Spotlight Comic issue #2, Batty-Man was at home watching the news when he noticed Sweet Polly. He instantly fell in love with Polly and ordered his right-hand man Georgie and his bat minions to kidnap Sweet Polly and bring her over to his castle in order to woo her. But Sweet Polly didn't return his feelings and Batty-Man ordered Georgie to take her down to the catacombs. Shoeshine heard Polly's cries for help and changed as Underdog to rescue her. After Polly was rescued, Batty-Man said to her that "their love was never meant to be".