 | Lon Chaney Jr. als Kharis |
 | Peter Coe als Dr. Ilzor Zandaab |
 | Virginia Christine als Princess Ananka |
 | Kay Harding als Betty Walsh |
 | Dennis Moore als Dr. James Halsey |
 | Martin Kosleck als Ragheb |
 | Kurt Katch als Cajun Joe |
 | Addison Richards als Maj. Pat Walsh |
 | Holmes Herbert als Dr. Cooper |
 | William Farnum als The Sacristan |
 | Charles Stevens als Achilles |
 | Napoleon Simpson als Goobie |
| Eddie Abdo als Pierre (uncredited) |
 | Enrique Acosta als Bit (uncredited) |
| Julius Aicardi als Bit (uncredited) |
 | Sam Appel als Bit (uncredited) |
| Eumenio Blanco als Worker (uncredited) |
| Nina Bara als Young Cajun Woman at Cafe (uncredited) |
| Oscar Blank als Bit (uncredited) |
| Nick Borgani als Bit (uncredited) |
 | Budd Buster als Cajun standing at bar, smoking pipe (uncredited) |
| Sam Calpriest als Bit (uncredited) |
| Henry Carr als Bit (uncredited) |
| Steve Cavalieri als Bit (uncredited) |
| Bert Cefali als Bit (uncredited) |
 | Ann Codee als Tante Berthe (uncredited) |
 | James Crane als The Pharaoh in Flashback (archive footage / uncredited) |
| John Dako als Bit (uncredited) |
| Rod De Medici als Bit (uncredited) |
| Ray De Ravenne als Bit (uncredited) |
| Armand Delmar als Bit (uncredited) |
| George L. Derrick als Bit (uncredited) |
| Heenan Elliott als Construction Worker (uncredited) |
| Ted Elliott als Bit (uncredited) |
 | Al Ferguson als Construction Worker (uncredited) |
| Arthur J. Flaven als Bit (uncredited) |
| Jay Gerard als Bit (uncredited) |
| Otto Gervice als Bit (uncredited) |
| Cliff Herd als Bit (uncredited) |
 | Herbert Heywood als Hill - Foreman (uncredited) |
| John Impolito als Bit (uncredited) |
 | Boris Karloff als Kharis in Flashback (archive footage / uncredited) |
| Manuel Lopez als Bit (uncredited) |
| Jack Lorenz als Bulldozer Driver (uncredited) |
| John Marlin als Bit (uncredited) |
| Earl Montgomery als Bit (uncredited) |
| Mike Morelli als Barfly (uncredited) |
| Anthony Natale als Bit (uncredited) |
| Ernesto Palmese als Bit (uncredited) |
| Dario Piazza als Bit (uncredited) |
| Paul Rochin als Bit (uncredited) |
| Joe Rubino als Bit (uncredited) |
 | Tony Santoro als Ulysses (uncredited) |
 | Hector V. Sarno als Cajun in Cafe (uncredited) |
| Phil Shepard als Bit |
| Renato Siauss als Bit (uncredited) |
| Charles Soldani als Barfly (uncredited) |
| Armand Tanny als Bit (uncredited) |
| Sid Troy als Bit (uncredited) |
 | Tom Tyler als Kharis in Flashback (archive footage / uncredited) |
| Ernesto Zambrano als Bit (uncredited) |
| Leslie Goodwins | Director |
| Bernard Schubert | Screenplay |
| Ben Pivar | Producer |
| Robert Pritchard | Sound Recordist |
| Oliver Drake | Associate Producer |
| Leon Abrams | Original Story |
| Dwight V. Babcock | Original Story |
| Virgil Miller | Director of Photography |
| Fred R. Feitshans Jr. | Editor |
| John B. Goodman | Art Direction |
| Martin Obzina | Art Direction |
| Victor A. Gangelin | Set Decoration |
| Russell A. Gausman | Set Decoration |
| John P. Fulton | Visual Effects |
| Jack Pierce | Makeup Artist |
| Mack V. Wright | Assistant Director |
| Oliver Drake | Songs |
| Frank Orth | Songs |
| Paul Sawtell | Music Director |
| Charles Cowie | Grip |
| Paul Sawtell | Music |
| William Lava | Music |
| Hans J. Salter | Music |
| Charles Previn | Music |
| Frank Skinner | Music |
| Dimitri Tiomkin | Music |
| Leon Abrams | Adaptation |
| Dwight V. Babcock | Adaptation |
| Mal Caplan | Costume Designer |
| Joe Bonner | Makeup Artist |
| Joe Hadley | Makeup Artist |
| Millissa Irwin | Hair Designer |
| Joseph E. Kenney | Assistant Director |
| Ernie Smith | Property Master |
| Bernard B. Brown | Sound Director |
| Robert Pritchard | Sound Mixer |
| Ada Artman | Boom Operator |
| Agee Kemp | Sound Recordist |
| Joe McGee | Special Effects |
| Carey Loftin | Stunts |
| Teddy Mangean | Stunts |
| Bob Pepper | Stunts |
| William Dodds | Camera Operator |
| Ray Fitzgerald | Best Boy Electrician |
| Frank Heisler | Assistant Camera |
| Lloyd Hill | Gaffer |
| Charles Sheehan | Grip |
| Vera West | Costumer |
| Molly Cook | Wardrobe Designer |
| Lee Frederic | Script Coordinator |
| Louis Herman | Dialogue |
| Ed Case | Property Master |
