Ah Ji was a character played by Wu Jing in the movie Kill the Wolf. He was the subordinate of the gang boss, Wang Bao. He was agile and spoke little. Wu Jing had created a very outstanding character in the movie. Ah Ji's action scenes were very exciting, especially the fight scene with Zhen Zidan, which left a deep impression on the audience. Although Ah Ji was just a small character, his temperament and performance were very unique.
Jack Maine is fictional. Authors and creators often come up with such characters to tell interesting tales and capture our imagination. There's no real person named Jack Maine behind the fictional portrayal.
Eyeless Jack can be developed by showing his softer side when interacting with the baby girl. For example, he might be more patient and gentle, which is a contrast to his usual menacing reputation. This can add depth to his character.
Since the story is named 'the texas jack story', it's very likely that Texas Jack is the central figure. He could be a real person from history or a fictional character created for the story. We don't know much more without further details, but he's most likely the one the story focuses on.
In this fanfiction, Jack's character development could be quite interesting. He could start as an eager recruit, excited to be part of the Black Dragons. As he spends more time with them, he'll encounter different personalities. Some might be kind and help him grow, while others could be manipulative. This will force Jack to become more discerning. He'll also have to learn to stand up for himself more, as the Black Dragons' environment is likely more cut - throat than what he's used to at the dojo. All these experiences will gradually transform Jack into a different, more self - reliant and worldly character.
At the start, Jack Reacher was more of a lone wolf, just wandering and getting into trouble. As the series progressed, he became more involved in complex cases. He also started to form some loose relationships with other characters, which added more depth to his character.