Himself
Jesse Owens
Bing Crosby
Rafer Johnson
Pope John XXIII
Ralph Boston
Self (uncredited)
Wilma Rudolph
King Constantine II
Original Music Composer
Armando Trovajoli
Angelo Francesco Lavagnino
Director
Romolo Marcellini
Executive Producer
Franco Galliano
Director of Photography
Mario Fioretti
Aldo Alessandri
Francesco Attenni
Libio Bartoli
Cesare Colò
Mario Damicelli
Renato del Frate
Angelo Filippini
Angelo Jannarelli
Luigi Kuveiller
Emanuel Lomiry
Angelo Lotti
Masino Manunza
Erico Menczer
Ugo Nudi
Emanuele Piccirilli
Marco Scarpelli
Antonio Secchi
Renato Sinistri
Vittorio della Valle
Carlo Ventimiglia
Fausto Zuccoli
Editor
Mario Serandrei
Jolanda Benvenuti
Alberto Verdejo