When Diavian (Alexis Fields) says "and my sister is Tootie from the Facts of Life" her sister, Kim Fields, really did play Tootie.
When Marques Houston's character, Roger, mentions that his cousin is the singer Batman from the group Immature, he's actually referring to himself. Marques was a member of Immature and went by the name Batman. So, naturally, he plays both roles.