Born in Rome, Manni debuted as an actor in 1952, when in spite of his acting inexperience he was chosen by Luigi Comencini for the main role in La tratta delle bianche. Following the success of the film Manni interrupted his university studies and started appearing in a significant number of films of any genre, becoming in a short time one of the most popular actors in the Italian cinema. Declined the fame, in the sixties Manni appeared mainly in spaghetti western and peplum films, but he also took part to several international productions, including films by Delmer Daves and Tony Richardson. His last role was Katzone in Federico Fellini's City of Women.
He died in Rome, aged 52, after accidentally shooting himself.
Filmography
Actor
1980
City of Women as
Dr. Xavier Katzone
1980
La verdad sobre el caso Savolta as
Claudedeu
1979
Il malato immaginario as
Amministratore dei poderi
1979
Un uomo in ginocchio as
Vincenzo Fabbricante
1978
Il prigioniero (TV Movie) as
Barone Dominici
1978
The Iron Commissioner as
Ingravallo
1978
Silver Saddle as
Thomas Barrett
1978
Circuito chiuso (TV Movie) as
Official
1978
Il furto della Gioconda (TV Mini Series) as
Ministro Credaro
- Episode #1.3 (1978) - Ministro Credaro
1977
In the Name of the Pope King as
Il conte Ottavio
1977
Il nero muove (TV Movie) as
Francone
1977
La malavita attacca. La polizia risponde. as
Rampelli
1977
The Rip-Off as
Ettore
1976
Oh, Serafina! as
Padre di Serafina
1976
Risking as
Perrone
1976
Poliziotti violenti as
Lawyer Vieri
1976
Street People as
Il padre Frank
1976
La madama as
Sante Tonnaro
1975
Attenti al buffone as
Un amico di cesare
1975
The Divine Nymph as
Il professore Marco Pisani
1975
...a tutte le auto della polizia... as
Enrico Tummoli
1975
La peccatrice as
Santuzzo
1975
Furia nera as
David Chandler
1974
Rabid Dogs as
Bank President
1974
Orlando furioso (TV Mini Series) as
Carlo Magno
- Episode #1.5 (1974) - Carlo Magno
- Episode #1.4 (1974) - Carlo Magno
- Episode #1.3 (1974) - Carlo Magno
1974
Heroes in Hell as
Bakara
1974
The Murri Affair as
Il dottore Carlo Secchi
1974
Young Lucrezia as
Rodrigo Borgia - Papa Alessandro VI
1973
Buona parte di Paolina as
Il brigante
1973
Anna: The Pleasure, the Torment as
Zuco
1973
Chino as
Sheriff
1973
They Were Called Three Musketeers But They Were Four as
Porthos
1973
No Way Out as
Gesmundo - the sauna owner
1973
Mafia Junction as
Morell (as Red Carter)
1973
Anything for a Friend as
Jonas Dickinson (as Red Carter)
1972
A.A.A. Massaggiatrice bella presenza offresi... as
Police Commissioner
1972
Karzan, il favoloso uomo della jungla as
Capt. Fox
1971
Noi donne siamo fatte così as
Teresa's Husband (segment "Schiava d'amore")
1971
Mazzabubù... quante corna stanno quaggiù? as
Il medico fecondatore
1970
Incontro d'amore as
Commissario
1970
Inginocchiati straniero... I cadaveri non fanno ombra! as