 | Ajita Wilson als Eureka Thompson |
 | Rita Silva als Warden Landers |
 | Linda Jones als Julia Rogers |
 | Alessandro Freyberger als Prison Guard (as Alex Frayberger) |
 | Cesare Di Vito als Prison Governor Trudeau (as John Vincent) |
| Leo Annibali als (as Lex Burton) |
| Helen Johansson |
 | Adriana Giuffrè als Mrs. Trudeau (as Adrianne Giuffrè) |
| Leda Simonetti als Mae (as Laura Simonson) |
 | Aperio Bella Olivia als (as Olivia Bernard) |
 | Giorgio Cerioni als Prison doctor (as George McGraw) |
| Lucia Rotolini als (as Lucy Shaw) |
| Enrica Saltutti als Sarah Winters (as Elizabeth Sherbrooke) |
| Carolina Caiati als (as Caroline Eatherly) |
| Laura Di San Luca als (as Laura De San Luca) |
 | Alfonso Giganti als Police inspector (uncredited) |
| Gianni Siragusa | Director |
| Sergio Garrone | Writer |
| Marjory McDonald | Script Supervisor |
| Frances Taylor | Music |
| Richard Eames | Assistant Director |
| Victor Parson | Still Photographer |
| Frank Kimberly | Camera Operator |
| Maria Teresa Carrera | Hairstylist |
| Tony Grant | Assistant Editor |
| Joe Ferrante | Makeup Artist |
| Bernie Green | Sound Recordist |
| Maurizio Centini | Cinematography |
| Daniele Alabiso | Editor |
