The central character is the last ronin Turtle. However, there are also likely to be some antagonists. These could be old foes of the Turtles who have now become more powerful or new threats that have emerged in the changed world depicted in the graphic novel.
The number of Last Ronin comics can vary. It depends on the ongoing production and publication schedule. You might want to check with the official comic publishers or relevant sources for the most accurate and up-to-date count.
It's about a ronin's last adventure. It might involve his battles, his code of honor, and his journey in a feudal - like world. Maybe he's seeking revenge or trying to right some wrongs.
Well, the main character is likely the last ronin himself. There may also be some supporting characters like his former comrades, or the people he meets during his journey.
The movie Ronin indeed takes inspiration from the graphic novel. They share core elements and themes, but the movie might have made some adaptations for the big screen.
The 47 Ronin story has indeed been made into a comic book. It typically features detailed illustrations and a narrative that stays true to the original legend, while adding some creative elements for visual appeal.