| Boris Karloff | Im-Ho-Tep/Ardeth Bey |
| Bud Abbott | Peter |
| Dick Foran | Steve Banning,Stephen A. Banning |
| Lon Chaney | Kharis, the Mummy |
| John Carradine | Egyptian Priest |
| Lou Costello | Freddie |
| Peggy Moran | Marta Solvani/Sullivan |
| Peter Coe | Dr. Ilzor Zardad |
| Zita Johann | Helen Grosvenor / Princess Anck-es-en-Amon |
| David Manners | Frank Whemple |
| Elyse Knox | Isobel Evans |
| George Zucco | Prof. Andoheb |
| Marie Windsor | Mme. Rontru |
| Ramsay Ames | Amina Mansouri |
| Virginia Christine | Princess Ananka |
| Cecil Kellaway | Solvani the Great |
| Edward Van Sloan | Professor Muller |
| Kay Harding | Betty Walsh |
| Michael Ansara | Charlie |
| Robert Lowery | Tommy Hervey |
| Turhan Bey | Mehemet Bey |
| Arthur Byron | Sir Joseph Whemple |
| Barton MacLane | Inspector Walgreen |
| Dan Seymour | Josef |
| Dennis Moore | Dr. James Halsey |
| John Hubbard | John Banning |
| Wallace Ford | Babe Jenson |
| Bramwell Fletcher | Ralph Norton |
| Mary Gordon | Jane Banning |
Technical Credits
| Charles Lamont | Director |
| Harold Young | Director |
| Karl W. Freund | Director |
| Leslie Goodwins | Director |
| Reginald Le Borg | Director |
| William Christy Cabanne | Director |