Margaret is a professional and quiet individual and is significantly more mature than her younger siblings Elizabeth, Theodore and Lavenza, although she shares Elizabeth's sense of humor. However, she does show an angry side to her in Persona Q when Theodore accidentally gets her hair wet and in Persona Q2: New Cinema Labyrinth when Caroline and Justine had a Fusion Accident. She is highly concerned about the relationship Elizabeth established with the protagonist of Persona 3, as she decided to leave the Velvet Room in order to find a way to rescue him from his fate. This also makes it clear that Margaret is highly loyal to her master Igor. She can also be quite scary when she is angry, as even the usually haughty and arrogant Caroline and Justine wouldn't dare anger her.