There's no clear answer why Maggie Lauten, the military brat, vanished from A Different World. Some say Marisa Tomei left the show on her own, some rumors circulate that she wanted to do a storyline where her black boyfriend brought her home to shock his parents and NBC said no, and some say there just wasn't any room on the Cosby Show spinoff for her character. Whatever the reason, Marisa Tomei's career hasn't been negatively effected by leaving the show after the first season.