Orphaned as a result of his father's death at only six years of age, he began to attend the oratory of the Basilica of San Marco, but family needs prevented him from continuing the study of music.
Also by other composers, he played Jack Rance in La fanciulla del West, Michele in Il tabarro, Scarpia in Tosca, Alfio in Cavalleria rusticana, Barnaba in La Gioconda, Tonio in Pagliacci, Gianciotto in Francesca da Rimini, Enrico in Lucia di Lammermoor, Il Duca D 'Alba and the High Priest of Samson et Dalila.
He sang with many illustrious colleagues, including Boris Christoff, Mario Del Monaco, Magda Olivero, Carlo Bergonzi, Cesare Siepi, Raina Kabaivanska, Ghena Dimitrova, Montserrat Caballé, Maria Dragoni, Plácido Domingo, Luciano Pavarotti, José Carreras, Nicolai Ghiaurov, and was under the guidance of famous directors, such as James Levine, Carlos Kleiber, Zubin Mehta, Peter Maag, Wolfgang Sawallisch, Franco Capuana, Francesco Molinari Pradelli, Giuseppe Sinopoli, Bruno Bartoletti and Claudio Abbado.
in August 2007 at the Arena di Verona he successfully added to the baritone interpretations to that as the bass in the role of Verdi of Zaccaria (there are some live recordings where he sings also in the tenor register).
While continuing his artistic activity, Carroli also dedicated himself for years to teaching and held the chair of singing at the school for tenors of the Del Monaco Foundation.