Directed by
| William Castle | ||
Writing Credits (in alphabetical order)
| DeVallon Scott | ||
| George Worthing Yates | ||
| Frank Yerby | ... | (novel) |
Cast (in credits order)
| Ricardo Montalban | ... | Pietro Donati | |
| Betta St. John | ... | Lady Iolanthe Rogliano | |
| Rick Jason | ... | Enzio Siniscola | |
| Carolyn Jones | ... | Elaine of Siniscola | |
| Whitfield Connor | ... | Frederick II | |
| Michael Ansara | ... | Count Alesandro Siniscola | |
| Edgar Barrier | ... | Baron Rogliano | |
| Nelson Leigh | ... | Isaac | |
| Pamela Duncan | ... | Zenobia | |
 |
Guy Prescott | ... | Donati (as Frank Pulaski) |
| Rest of cast listed alphabetically: | |||
| Morris Ankrum | ... | Undetermined Secondary Role (uncredited) | |
|
|
Edward Coch | ... | Giuseppe (uncredited) |
|
|
Gene Darcy | ... | Italian Prince (uncredited) |
|
|
Poppy del Vando | ... | Gina (uncredited) |
|
|
Nyra Monsour | ... | Maria (uncredited) |
| Leonard Penn | ... | Haroun (uncredited) | |
| Keith Richards | ... | Spectator (uncredited) | |
Produced by
| Sam Katzman | ... | producer |
Cinematography by
| Henry Freulich | ... | director of photography |
Editing by
| Gene Havlick | ||
Art Direction by
| Paul Palmentola | ||
Sound Department
| Rookie Johnson | ... | cable man |
Music Department
| Mischa Bakaleinikoff | ... | musical director / composer: stock music (uncredited) |
| Mario Castelnuovo-Tedesco | ... | composer: stock music (uncredited) |
| Sidney Cutner | ... | composer: stock music (uncredited) |
| George Duning | ... | composer: stock music (uncredited) |
| Hugo Friedhofer | ... | composer: stock music (uncredited) |
| John Leipold | ... | composer: stock music (uncredited) |
