Ambrogio
Ambrogio is denoted as bass in the libretto, and he has the following five lines in scene 11 of act 1: "Ah! che comanda?", "Ah, ah!", "Ah, ah! che sonno!", "Ah!" (2x); source: both librettos mentioned in the article (I didn't feel like downloading the whole vocal score from IMSLP (~20MB). If someone corrects Ambrogio's voice type, it might be worth including the link to the score at IMSLP under "External links": {{IMSLP2|id=Il Barbiere di Siviglia (Rossini, Gioacchino)|cname=''The Barber of Seville''}} which gives .