Another storyline could involve the relationship between Captain Man's daughter and Henry. Maybe they start as rivals, both vying for Captain Man's attention or trying to prove who is the better sidekick. But over time, they grow to respect and rely on each other.
Well, obviously Captain Man's daughter is a main character. She is likely to be portrayed with unique traits and abilities. Henry is also a key figure as he has a connection to Captain Man already. Captain Man himself is another mainstay, as the father of the daughter and the mentor to Henry.
I'm not sure which article you're referring to because you didn't provide any specific information. But if you're referring to Captain America: Civil War, then the female lead should be Chris Evans 'daughter, Meg Ryan.
Captain Marvel is not male in the comics. The comic version features a female character who goes through various adventures and battles with her distinct abilities.