|Family||Jean-Ralphio Saperstein (brother)|
|Significant Other||Tom Haverford (ex-boyfriend)|
|Occupation||Sales Associate at Rent-A-Swag|
Mona-Lisa Saperstein is the "twin sister from the same mister" of Jean-Ralphio Saperstein, who he describes as "the worst person in the world", as well as a "total klepto, nympho, and pyro".
Tom Haverford hires Mona-Lisa at his Rent-A-Swag business. She lacks any work ethic, choosing to take naps to sleep off the Ecstasy she took the night before, and stealing money from the register. He tries to discipline her by threatening to fire her, but they end up starting a relationship.