William "Bill" Taurens was born in Camden, New Jersey. He was hired by Mister Kline to round up people to test an experimental serum (taken from bulls) made by his agent the Professor. Although assisted by Itch and Freak Face, his attempts were thwarted by Daredevil. As a result, Bill ended up being a guinea pig for the serum which turned him into a humanoid bull. Becoming the Man-Bull, he fought Daredevil, who defeated the Man-Bull by throwing him into a wall; the Man-Bull reverted to Taurens and was arrested by the police.