My Favorite Year character question...?

Okay, I'm in high school and this is my senior year. For the musical, we're doing My Favorite Year. I'm looking mostly at the characters KC Downing and Alice Miller but I can't find much about them. Last year, I was Dorothy in the Wizard of Oz, so the chances of me getting a lead part again are pretty slim. I'm a very sarcastic person most of the time, but I also butcher jokes. I need all the help I can get right about now, because the auditions are next week. So, I was wondering if anyone could give me some details on the characters to help me better prepare myself for the tryouts. Thanks in advance! =)