Well, in the Shadowhunters novel, Valentine Morgenstern is a character that sticks in your mind. He is the main antagonist, and his extreme beliefs and his thirst for power drive the main conflict in the story. Luke is also memorable. He is a werewolf who has a complex relationship with the Shadowhunters and Clary. His loyalty and his own internal battles make him an interesting character.
Jace is definitely one of the most memorable. His cocky attitude and his amazing fighting skills make him stand out. Then there's Clary. Her discovery of her Shadowhunter heritage and her journey to understand her powers are very interesting. Also, Simon is quite memorable. He's a normal human turned into a vampire, and his struggle to adapt to this new life is engaging.
One of the most popular characters is Magnus Bane. He's a warlock with great power and a flamboyant personality. His relationship with Alec is also a big draw for readers. Alec is another popular character. He's a shadowhunter who has to deal with his own insecurities and his feelings for Magnus. Isabelle is popular too. She's a strong and confident shadowhunter who is not afraid to fight and stand up for what she believes in.
Clary and Jace's love story is also very memorable. The twists and turns, from believing they were siblings to finding out they were not, added a lot of drama. Their love was intertwined with the fate of the shadowhunter world. They had to constantly fight against their enemies while also dealing with their own feelings, which made their story so captivating.
Jace Wayland is one of the most popular. He's a skilled Shadowhunter, and his complex personality and his romantic relationships make him a fan favorite. Clary Fray is also very popular. She discovers her Shadowhunter heritage and her journey of self - discovery is really engaging.
I think Magnus Bane is really interesting. He is a warlock with great power and a flamboyant style. His relationship with the shadowhunters, especially Alec, makes for some great storylines.
In Twilight, Edward and Bella are often popular. Their complex relationship can be further explored or twisted in fanfiction. In the Shadowhunters world, Jace is a very popular choice. His brooding nature and his skills as a Shadowhunter make him an interesting character to write about.
In Shadowhunters, Clary Fray is often a popular choice. Her journey as a Shadowhunter and her relationships make her an interesting character to write about. In Supernatural, Sam and Dean Winchester are commonly written about. Their brotherly bond and their demon - hunting adventures are rich material for fanfiction writers.
Harry Potter himself is quite popular. His status as the Boy Who Lived gives him a certain allure in the crossovers. Fans like to imagine how he would handle the different threats in the Shadowhunter world. Clary Fray is also a favorite. Her journey as a Shadowhunter, especially her discovery of her powers, can be paralleled with Harry's discovery of his wizarding abilities. And when they interact, it can lead to some really engaging storylines.
Clary Fray is one of the main characters. She discovers she is a shadowhunter and has to adapt to this new world.
Vito Corleone, even though his story is also in the past in this novel, his influence on the family and his rise to power are quite remarkable. His wisdom and leadership in building the Corleone empire stay with the reader.
The three musketeers stand out. Athos has a tragic past which adds depth to his character. Porthos is big - hearted and his pursuit of wealth in a rather comical way makes him memorable. Aramis with his dual life of a musketeer and his religious aspirations is quite interesting. And D'Artagnan, who comes from the provinces and has to navigate the complex world of Paris, is a central and unforgettable character.