Set in Naples at the end of the 19th century, I Guappi tells the story of a strange friendship between the powerful and charismatic Camorra boss, Don Gaetano (Fabio Testi), and one of the many scugnizzi who grew up on the streets, Nicola Bellizzi (Franco Nero). Nicola, thanks to Don Gaetano's protection, becomes first an honoured picciotto of the Camorra and then a lawyer. He tries to break away from his 'family', but falls back into a life of crime and violence.
Franco Nero
as Nicola Bellizzi
Claudia Cardinale
as Lucia Esposito
Fabio Testi
as Don Gaetano Fungillo
Raymond Pellegrin
as Aiossa
Lina Polito
as Nanina Scognamilio
Rita Forzano
as Luisella
Antonio Orlando
as Pasquale Scalzo
Sonia Viviani
as Donna Maria
Gengher Gatti
as Capo Camorra
Rosalia Maggio
as Amalia Scognamiglio
Edoardo Mascia
as Don Antonio
Nino Vingelli
as Gigino la Charonge