This is a very good idea. I spent much of the recent MLG explaining to my housemates what each unit was, how it worked with the other units, and I spent a lot of time explaining what the casters were saying.
One thing you could add would be who the most well known casters are (for example: Day, Husky, Artosis, Tasteless, DJWheat, etc.) and give just a quick bio of who they are. For example, Day is from Leawood, Kansas and did such and such, then referring to other information or links for more info.
Not exactly necessary for what you are doing but it would be cool in my opinion.