Jack Ryder was a reporter turned network security agent, assigned to safeguard Professor Yatz who was kidnapped anyway. In order to save Jack's life, Yatz injected him with a serum that enabled Ryder's body to heal quickly while giving him added strength and stamina... and a molecular device allowing him to turn Jack's masquerade costume invisible and intangible, and reappear at will. Now, as the Creeper, Ryder decided to feign being a supervillain to gain the trust of the underworld whom he would ensnare in traps. This led to conflict with Gotham's premier protector, Batman, who would eventually become his friend and colleague.
When at is known is that while Jack had allies in reporter Vera Sweet and network chief Bill Brane, Herb had pawns in reporter Nedra Borrower and politician Terry Marsh. Both men were viewed as inhuman and in fact this is somewhat true, although they operated on human attitudes. Ryder was a noble champion of justice, Hynde was a greedy opportunist of evil. Both had an impact, however slight, in the course of the history of the Batman Family.