Professor Pyg

History
Lazlo Valentin's past is unknown. Allegedly, he has a chemist for Spyral, who created a powerful thought-damping drug that mimics the effects of Alzheimer's disease. Trapped by their technology, he escaped the only way he could - a schizphrenic break, and a new persona named Professor Pyg. Escaping, he formed the Circus of the Strange. It is unknown what happened next, but apparently he was approached by Doctor Hurt and convinced to "share his vision" with Gotham City.

Pyg moved the Circus of Strange to Gotham, announcing the "Year of the Pig". Pyg started the campaign of making people "perfect", as his minions (Dollotrons) capture Robin. All of this is part of Dr. Hurt's plan.

Pyg then tries to introduce an addictive "identity destroying" drug into the city via his Dollotrons. The drug is sold to various different gangs and mobs who use it to control prostitutes. However, Batman quickly puts an end to this - he rescues Robin and subdue Pyg and capture all of his Dollotrons. Pyg is arrested and taken to Blackgate Penitentiary.

Dr. Hurt helps Pyg escape, as he is a major part of his plan, and Pyg is told to wreak havoc on the city. He then kidnaps Commissioner Gordon and tries to perform surgery on him. Batman stops this and almost captures Pyg, but he is able to escape.

Soon after, Pyg stops being an ally of Hurt and heads off to complete his own agendas. Pyg is then seen surrounded by his minions and his still trying to infect Gotham with his new drug. He reveals a "box" to a crowd of drug addicts, telling them it will take away the pain. However, the box is actually a Dollotron converter, and whoever enters gets changed into a Dollotron. Batman and Robin put a stop to the madness and Pyg is taken to Arkham Asylum.