Mendoza is the steward of the Neptune Cumberland and is Vincent’s boss during her time aboard the ship. He got along well with Vincent while she worked there. When Saparelli and Prevant board the Neptune Cumberland to investigate Vincent’s disappearance, Mendoza discreetly informs them of a time, years back, when he heard Geoffrey Bell hit a woman he was seeing at the time. Given the fact that Bell and Vincent were in a relationship at the time of her disappearance, Mendoza thinks this information might be useful to the investigation. Ultimately, however, Mendoza’s information is left unused when, wanting to avoid a publicity scandal for the shipping company, Saparelli discounts Mendoza’s information and rules that Vincent’s death was an accident.