Here is the thing, I thought about it, and decided to link each of the characters to their Marvel Cinematic Universe Wiki Page. That will give you more information than I could. So click on the banner to be taken to the Wiki page. It is your own risk, but I found out a lot of information by doing it this way. (and I cheated I have each in my OneNotes) So you will have the same background. Of course, any changes I make to the backstories, is mine.