Arch-nemesis to the Puma Man, he was thought killed in a zeppelin explosion. However, before his death he managed to create a virtual army of clones, each hell-bent on vengeance.

Many of these clones are of poor quality and have questionable skill sets and physical attributes, but others are just as creepy and dangerous as the original.

There is apparently now a sophisticated organization of these clones in operation in Gotham City. They were running a super-science research facility in hidden floors beneath the cunningly-named Pleasance Building in the Financial District, until a viral outbreak forced the laboratory to shut down in May of 1934.