The Gadfly

Arthur Burton / Felice Rivarez

Gemma

Cardinal Montanelli

Cesare Martini

Marcone

Giuseppe

Giovanni Bolla

Domenichino

Father Cardi

Grassini

Grassini's Wife

James Burton

Julia

City Commandant

Colonel

Austrian general

Informant

Officer

Priest

Chief of the Border Post

Beggar

Officer

Acting

Ricardo, doctor