The 'uncle iroh little soldier boy story' could be a heart - warming or action - packed tale. It might start with the little soldier boy being in a tough situation, perhaps lost or in danger. Uncle Iroh, with his kind heart and vast experience, comes to his rescue. As they interact, Uncle Iroh could share stories from his own past, about his days as a warrior. He could teach the boy about strategy, but also about compassion. The story could be about the growth of the little boy under Uncle Iroh's tutelage, learning to be a better fighter not just in terms of physical combat but also in terms of being a good person.
Uncle Iroh has a complex back story. He was once a powerful general but experienced many losses and hardships that led him to become a more peaceful and wise figure.
Not having knowledge of the 'little soldier boy story' makes it impossible to accurately name the main characters. But if it follows a common pattern, the boy would be the central character. There could be other characters like his mentor if he is learning to be a soldier, or friends who support him on his journey. There might also be some characters who oppose him, like bullies or enemies in a war - related scenario.
I'm not sure specifically which 'Mako Iwamatsu Little Soldier Boy' story you are referring to. Mako Iwamatsu was a great actor, but without more context, it's difficult to tell the exact story.
One common theme could be the search for identity. The little boy might be lost in terms of who he is and the uncle could play a role in helping him discover that.