This is Mr. Vento and his best friend the literature book. Actually, the book is his best friend because it's the only thing that hasn't tried to run away from him. (Well, it did try, but Mr. Vento holds it really tight.)
This is the custodian, Mr. Dave, chewing on a fluorescent light bulb. A lot of kids are afraid of him because he's so strange, but, if you just hand over all of your lunch money, he'll usually leave you alone.