Who are the most interesting characters in Overlord 4 light novel?

Ainz Ooal Gown is surely one of the most interesting. His transformation from a normal player in a game to a powerful being in a new world is fascinating. He has to deal with his newfound power and the responsibilities that come with it.

Sebas Tian is an interesting character. He is a butler with a strong sense of justice. He often has to balance his loyalty to Ainz with his own moral code. For example, when dealing with the situation in the slums, he shows his kind heart while still being a servant of Ainz. Demiurge is also a great character. His intelligence and his elaborate plans to further Ainz's goals are always captivating to read about.

There are several interesting characters. Ainz, as the main character, is full of contradictions. He wants to protect his new 'home' but also has to act in ways that might seem cruel from an outside perspective. Mare Bello Fiore is interesting too. He's shy and gentle compared to the other more powerful and often more menacing characters. And then there's Aura Bella Fiora, his sister, who is more outgoing and mischievous, adding a different flavor to the character lineup.

Albedo is also very interesting. She is extremely loyal to Ainz, but her loyalty sometimes takes a rather obsessive turn. Her beauty and her complex personality, which combines a gentle side with a fierce protectiveness towards Ainz, make her stand out. She also has a lot of power in her own right, which adds to her allure.

Ainz Ooal Gown is very interesting. He is a complex character. He was an ordinary human in his previous life but now has this all - powerful form. His internal struggle between his human emotions and his role as an overlord makes him engaging.

Shalltear Bloodfallen is an interesting character. She is a powerful vampire with a complex backstory. Her struggle between her loyalty to Ainz and her own nature at times is quite engaging. Then there is Demiurge. His intelligence and his schemes to further Ainz's rule are really something. He is always coming up with elaborate plans and seeing how they play out is exciting.

Ainz Ooal Gown (Momonga) is a top pick for an interesting character. He has to navigate a new world with his knowledge from a game, and his actions are always calculated. Shalltear Bloodfallen is also interesting. She is a powerful vampire with a unique backstory and abilities, and her loyalty and occasional lapses add depth to her character.

Ainz is always an interesting character in Overlord Vol 9. His unique position as an undead overlord trying to rule in a new world makes him full of contradictions and depth. Albedo is also quite interesting, with her unwavering loyalty to Ainz which sometimes leads to extreme actions. Then there's Demiurge, whose intelligence and devious plans add a lot of intrigue to the story.

Ainz Ooal Gown is definitely one of the most interesting. His struggle to adapt his modern - world knowledge to the fantasy world of the novel is fascinating. Also, Albedo with her extreme loyalty and complex feelings towards Ainz is really interesting.

Perhaps new characters introduced in volume 13 could be really interesting. They might have special abilities or motives that add new layers to the story. However, if we consider the existing characters, Albedo with her unwavering loyalty and complex feelings towards Ainz is also quite fascinating. Her actions and decisions often play an important role in the story.