Johan Liebert

Johan Liebert is the main antagonist in the anime Monster.

Origin
Johan Liebert's origin is shrouded in mystery. When he was just a young boy, he was wandering the border of Germany with his twin sister, Anna. They were both discovered half-starved, and dying. They were taken to two separate orphanages, Anna to Orphanage 47, and Johan to Kinderheim 511. Kinderheim 511 was a horrid place where children were treated like criminals and experimented on in an attempt by the government to create perfect soldiers. One day, Johan led a revolt in the institution, and got fifty people to kill each other by simply "tossing an oil rag into a fire." Johan's mentors had always nurtured Johan's skill for manipulating others with no conscience. However, when confronted, they claimed that Johan was already a "monster" when he first came to the orphanage. The details of how his mind came to be so twisted are still unknown.

Personality
Johan is a sociopath. He has no conscience, whatsoever, and revels in human suffering. The only two people he refuses to kill are his sister, Anna, and the doctor that saved his life, Dr. Kenzo Tenma. It was theorized that he has two personalities in his mind. One that likes to commit murder, and one that tries to stop the murders. The evil personality is the dominant one, and the other has yet to be physically seen. His sister once described Johan as being "absolute evil."

Despite his cruelty and unfriendliness, Johan is quite polite. He is rarely rude to others and is charismatic.

Similarities to Michio
All of Johan's characteristics are similar to Michio Yuki, the main antagonist of MW. They were once innocent kids, but turned insane when affected by secret military experiments. They are also experts at manipulating people, have ambitions to end the world, try to commit suicide by cop, and they also cross-dress.

Goals
Johan has stated that his one true goal is to be the last one alive when the world ends. But in reality, his goal is to commit the "perfect suicide", dying without leaving behind any evidence of his existence, except possibly Dr. Tenma's memories of him.