Johan Liebert

Original Name (Japanese) ヨハン・リーベルト
Romaji Name Johan Liebert
Nicknames Monster
Series Monster
Age Varies throughout the series
Weight Varies throughout the series
Height Varies throughout the series
Date of Birth Unknown
Blood Type Unknown

Johan Liebert is a fictional character from the anime and manga series “Monster”. He serves as the eponymous “monster” of the story and plays a central role in the plot. The character’s personality, background, appearance, abilities, and origin are explored throughout the series.


On the surface, Johan Liebert appears to be a well-mannered, charismatic, and compassionate young man. However, he also possesses an aloofness that contributes to his enigmatic nature. Despite his positive qualities, Johan has a dark and manipulative side. He is known for his extraordinary charisma and intelligence, which he uses to manipulate and corrupt others, often causing suffering and destruction. Johan has been described as a catalyst for the transformation of individuals into monsters, and he shows a strong attachment to his twin sister, Nina Fortner/Anna Liebert.


The mystery of Johan Liebert’s past is central to the plot. Throughout the series, it is revealed that Johan has lived under various aliases and in various places. He has been called a monster, the next Adolf Hitler and even the devil himself. At a young age, Johan was shot in the head, but was saved from death by Dr. Tenma, for whom he is eternally grateful. The circumstances of his shooting and his subsequent upbringing contribute to his complex and troubled character.


Johan Liebert is portrayed as an attractive young man with a calm and collected demeanor. His appearance belies the dark intentions and manipulative nature that lie beneath the surface. He is often seen wearing a suit, which adds to his sophisticated and enigmatic presence.


Johan Liebert possesses extraordinary charisma and intelligence, which he uses skillfully to achieve his goals. He has a keen understanding of human psychology and uses this knowledge to manipulate and control others. Johan’s abilities extend beyond mere manipulation, as he is also shown to possess a high level of strategic thinking and planning. His actions throughout the series demonstrate his ability to orchestrate complex schemes and influence those around him.


The origins of Johan Liebert are intricately tied to the events and mysteries explored in the Monster series. While his true origins are shrouded in mystery, it is revealed that Johan’s past is marked by trauma and tragedy that have profoundly shaped his character and motivations. The series delves into Johan’s past and explores the events that led to his transformation into the enigmatic and manipulative figure he becomes.
Please note that the information provided is based on the MyAnimeList site and general knowledge of the “Monster” series.

Johan Liebert – FAQ

Who is Johan Liebert?

Johan Liebert is a fictional character from the manga and anime series “Monster”. He is the main antagonist of the series and is known for his manipulative and charismatic personality.

What is Johan Liebert’s background?

Johan Liebert’s background is shrouded in mystery. Born in East Germany, he was subjected to various traumatic experiences during his childhood, which contributed to his transformation into a sociopathic and calculating individual.

What are Johan Liebert’s characteristics?

Johan Liebert is portrayed as highly intelligent, charming and manipulative. He has a knack for manipulating people and situations to achieve his goals. He is also adept at disguising his true intentions, often presenting himself as a kind and sympathetic individual.

What are Johan Liebert’s motives?

Johan Liebert’s motivations are complex and varied. He harbors a deep hatred for humanity and seeks to create chaos and destruction. He is driven by a desire to prove that humans are capable of evil acts, and he often orchestrates elaborate schemes to manipulate people into carrying out his plans.

What is Johan Liebert’s role in the “Monster” series?

Johan Liebert serves as the main antagonist in the “Monster” series. The story revolves around the pursuit of Johan by the protagonist, Dr. Kenzo Tenma, who is determined to stop Johan’s reign of terror and uncover the secrets of his past.

Is Johan Liebert a likeable character?

Johan Liebert is a complex character, and opinions on his sympathies vary among viewers and readers. While some may empathize with his troubled past and the traumas he has endured, his actions and disregard for human life make it difficult for many to fully sympathize with him.