Zero Moustafa is a fictional character from the novel and film "The Grand Budapest Hotel," created by director Wes Anderson. He serves as the lobby boy at the hotel and becomes the trusted protégé of the renowned concierge, Monsieur Gustave H. In the story, Zero is portrayed as resourceful and loyal, navigating the challenges of a changing Europe in the 1930s. His character represents themes of friendship and perseverance, as he helps Gustave in a quest involving a valuable painting and a family fortune.