Facts > Films > Mysterious Doctor Satan
Mysterious Doctor Satan (1940) Facts
| Director(s) | John English, William Witney |
| Producer(s) | No producer listed for this movie |
| Featured Cast | Eduardo Ciannelli, C. Montague Shaw, Charles Trowbridge, Yakima Canutt, Kenneth Harlan |
| Total Facts | 1 |
When this serial was being written, it was intended to be a series that utilized Superman as the main hero. The owners of Superman decided they didn't want to let the studio use the character. Instead of scraping the project altogether, the writers replaced Superman with a character of their own creation, called The Copperhead.