Professor Pyg (Arkham series)



Lazlo Valentin was a gifted scientist who suffered a schizophrenic break, which caused him to develop a deranged new persona named Professor Pyg. Pyg formed the Circus of Strange, began to tour the country, and left a string of mysterious missing persons cases in the wake. An obsessive perfectionist, Pyg used identity-destroying drugs and invasive surgery on his victims to create a genderless lobotomized human known as Dollotrons.

Unlike other villains who could be rehabilitated, Pyg would likely be executed as there is no hope of him regaining his sanity.