(Mozart: Don Giovanni). Bass. Don Giovanni's manservant. He is obliged to help his master in his amorous adventures, keeping watch for him when he seduces ladies. Tries to convince Donna Elvira of Giovanni's terrible nature by reciting a list of his master's seductions including, in Spain, 1,003 conquests. Forced to change clothes with his master to help assist in yet another seduction, he is mistaken for the Don by Donna Anna and her fellow‐conspirators, who are determined to reveal Giovanni as a murderer. He has to run for his life. Terrified when it speaks to them in the graveyard, he fails to prevent Giovanni inviting the Commendatore's statue to dinner. After Giovanni's demise, Leporello departs in search of a new master. Aria: Madamina, il catalogo è questo (‘My dear lady, here is a list’—the so‐called Catalogue Aria). Created (1787) by Felice Ponziani. See also article by Bryn Terfel.