Quacks hamper an Eastern doctor's attempts to prevent a smallpox epidemic.
| Name | Type | Role | |
|---|---|---|---|
| Carey Wilber | Writer | ||
| Gene Levitt | Writer | ||
| Colin Mackenzie | Writer | ||
| Ted O. Thackrey | Writer | ||
| George Huggins | Guest Star | ||
| Henry Daniell | Guest Star | ||
| Pedro Regas | Guest Star | ||
| Chris Alcaide | Guest Star | ||
| Leon Alton | Guest Star | ||
| Edwin Rochelle | Guest Star | ||
| Bruce Wendell | Guest Star | ||
| Gordon Armitage | Guest Star | ||
| Carl Sklover | Guest Star | ||
| Howard Dayton | Guest Star | ||
| Rudy Germane | Guest Star | ||
| Audrey Totter | Guest Star | ||
| Anthony Redondo | Guest Star | ||
| William Castle | Director |