In 'The Godfather' by Mario Puzo, Carlo Rizzi's betrayal of Sonny Corleone was a crucial plot point. Carlo, Sonny's brother - in - law, set Sonny up to be killed in a trap. He was resentful of Sonny and was also being manipulated by the rival families. His betrayal led to a series of events that furthered the story's drama and conflict.
Anakin Skywalker in the 'Star Wars' prequel trilogy is a well - known betrayer. He turns to the Dark Side, betrays the Jedi Order, and helps Emperor Palpatine in his evil plans. His love for Padmé and his fear of losing her play a part in his downfall. Another is Loki in the Marvel universe. He often betrays his brother Thor, whether it's for power, to prove himself, or just for his own mischievous reasons.
Brutus from 'Julius Caesar' is a very notorious betrayer. He was so close to Caesar, seen as a friend, yet he took part in the assassination plot. His actions were driven by his belief that Caesar was becoming too powerful, but his betrayal was still a huge shock. Then there's Iago from 'Othello'. Iago manipulates Othello into believing his wife Desdemona is unfaithful, all out of his own jealousy and spite, which ultimately leads to tragic consequences.
One of the top betrayals in fiction is Judas Iscariot's betrayal of Jesus in religious literature. His kiss in the Garden of Gethsemane led to Jesus' arrest. Another is Brutus' betrayal of Caesar in Shakespeare's 'Julius Caesar'. Brutus, a trusted friend, joined the conspiracy against Caesar, stabbing him. And in 'The Lord of the Rings', Saruman's betrayal of Gandalf. Saruman, once an ally, turned to the dark side, trying to get the One Ring for himself.
There's also Bellatrix Lestrange from the 'Harry Potter' series. She is a Death Eater and is responsible for multiple murders. Her loyalty to Voldemort and her pure - blood supremacist beliefs drive her to kill without remorse. Her character shows how ideology can play a role in the actions of fictional female serial killers.
One of the best betrayals in fiction is in 'Macbeth'. Lady Macbeth betrays her own moral code and manipulates Macbeth into murdering King Duncan. This act sets off a chain of tragic events that ultimately leads to their downfall.
It's hard to say for sure, but many would consider Thanos to be one of the biggest villains. His quest for power and his actions in the Infinity Saga had a huge impact.
The Wicked Witch of the West from 'The Wizard of Oz' has a complex back story. She was angry because Dorothy's house fell on her sister. She was already powerful in the land of Oz, but her desire for revenge against Dorothy, who she saw as an interloper, made her a feared villain. She used her magic to try and stop Dorothy from reaching the Wizard and going back home.
In 'The Godfather', Carlo Rizzi betrays Sonny Corleone. Carlo, who was married to Sonny's sister Connie, sets Sonny up to be killed in a trap. He does this out of jealousy and resentment towards the Corleone family. Also, in 'Macbeth' by Shakespeare, Lady Macbeth betrays her own moral code. She encourages Macbeth to murder King Duncan so that he can become king, which leads to a downward spiral of guilt and more bloodshed. Then there's the betrayal of Edmond Dantès in 'The Count of Monte Cristo' by Fernand Mondego. Fernand, who was once Dantès' friend, helps send him to prison out of envy and to win Dantès' fiancée.
I'm afraid I don't know the specific main characters in this light novel. However, if we assume based on the title, the main character would be the notorious talker. There could be other characters like a sidekick who is constantly listening to the talker's ramblings, or an antagonist who gets frustrated with the talker's constant chatter and tries to silence them in some way.
One of the well - known killers using nicotine in mystery novels is the character in Agatha Christie's works. Her plots often involve poisonings, and nicotine could be among the substances used. Another could be in some of the noir - style mystery novels where a shadowy figure uses nicotine to eliminate their enemies quietly.
One of the most famous thieves in world stories is Arsene Lupin. He is a fictional gentleman thief created by Maurice Leblanc. Lupin is known for his charm, intelligence, and elaborate heists. Another is Robin Hood, who stole from the rich to give to the poor in English folklore, making him a heroic kind of thief in the eyes of many.
They often create major turning points. For instance, in 'Julius Caesar', Brutus' betrayal of Caesar leads to chaos in Rome. It changes the power dynamics completely and sets off a chain of events that are central to the plot. In 'The Count of Monte Cristo', Fernand's betrayal of Edmond Dantès is what starts Dantès' journey of revenge. Without that betrayal, there would be no story of his elaborate plan to get back at those who wronged him.