However, you are likely interested in fictional characters who are consumed by a single, dominant obsession. Here are a few examples:
Classic Literature:
* Captain Ahab (Moby Dick by Herman Melville): Driven by a relentless desire for revenge against the white whale that took his leg.
* Heathcliff (Wuthering Heights by Emily Brontë): Consumed by his love for Catherine Earnshaw and his desire for revenge on those who separated them.
* Count Dracula (Dracula by Bram Stoker): Obsessed with blood and immortality.
* Dr. Frankenstein (Frankenstein by Mary Shelley): Driven by a relentless ambition to create life and a desire for scientific discovery.
* Miss Havisham (Great Expectations by Charles Dickens): Eternally fixated on her abandoned wedding day, and the revenge she seeks on men.
More Contemporary Examples:
* Patrick Bateman (American Psycho by Bret Easton Ellis): Driven by a violent, obsessive need for control and self-gratification.
* Severus Snape (Harry Potter by J.K. Rowling): Consumed by his love for Lily Evans and his desire to protect her son, Harry.
* Norman Bates (Psycho by Robert Bloch): Obsessed with his mother and driven to extreme acts of violence.
Other Examples:
* Sherlock Holmes (Sherlock Holmes stories by Arthur Conan Doyle): While not always depicted as a monomaniac, his intense focus on solving crimes and his disdain for social interaction often makes him appear as one.
* The Joker (Batman comics and films): Driven by a chaotic obsession with creating mayhem and disorder.
It's crucial to remember that fictional characters often represent extremes and should not be used to stereotype real people with mental health issues. However, exploring the complexities of these obsessive characters can provide valuable insights into human nature and the powerful nature of obsession.