There's not enough information given to really know who Kevin Will is in the 'end of watch the kevin will story'. He could be anyone. He might be a character in a fictional story, in which case his identity could be shaped by the plot. For instance, if it's a mystery story set around a night watch, he could be the detective or the person who holds the key to solving the mystery. Or if it's a more personal story, he could be someone going through a life - changing experience during his watch. But all of this is pure speculation at this point.
Kevin Cummins might be an individual with a passion for storytelling. Maybe he is someone who uses his stories to convey important messages, entertain people, or preserve a certain culture or tradition. Without more context, it's difficult to say exactly who he is.
One common theme is friendship. Kevin and Gwen's friendship is often explored, showing how they support each other. Another theme is growth. Kevin's growth as a character, whether it's in terms of his powers or his personality, is frequently a part of these fanfics.
Among the Heisei Ultraman series, there were dramas like "My Hometown is Earth","The Messenger of Nong Marte", and "The Messenger of Monsters and Teenagers":
1 Supernova Era: Ultraman and the Galaxy Empire
2 " Night of the Galaxy Railroad "
3. Monster Messenger and Teenager
4. The Legend of Ultraman
5 Galaxy Guard
These series had a deep Ultraman element, but also added some light and humorous elements. It was a very popular Heisei Ultraman series.
I'm not sure specifically as there could be many interpretations. It might be about a character named Kevin who has some kind of interesting story. Maybe he has some waiting to do in the story and during that time, something good or meaningful occurs.
I'm not sure as I haven't read the story, but he could be the protagonist or an important character involved in the events related to the Christmas killing.
A really interesting 'Ben 10 Kevin and Gwen' Kevin fanfic is 'Kevin in the Spotlight'. This fanfic puts Kevin at the center of the action. It shows how his actions and decisions not only affect his own life but also his relationship with Gwen. It has some great character development for Kevin and some really sweet moments between him and Gwen.
Since we only know about him from the title 'Kevin Cooper NY Times Magazine Interactive Story', he could be many things. He might be an activist whose story the NY Times Magazine wants to share in an interactive way. Maybe he is a local hero who has made a significant impact on his community, and the magazine is using this interactive story to bring his story to a wider audience. Or perhaps he is a person who has been through a unique experience, like surviving a natural disaster or overcoming a great personal hardship, and the magazine is chronicling his story.