Kari has the same facial structure as Diane Tsvirkunov. According to her SimDNA in SimPE, her hair was black before it turned grey. Like all cafeteria chefs and unlike other NPCs and townies, Kari is overweight.
Her name is randomized when Académie Le Tour is generated. The name "Kari Enriquez" is only referenced in the game files. Despite being a FamilySim, Kari's Lifetime want is to earn §100,000 Simoleons, which is normally only available to Fortune Sims.