I can understand why they redubbed Zorro. Clayton's voice is very distinct, and everyone would wonder why Rita and friends were too dense to realize he was Zorro. Can't have the Lois Lane situation going on here! The villains in this serial don't like each other. HA! These criminals are a cowardly, superstitious lot that think Zorro is a real ghost. Nice scene with Hodge here.
There's some nice miniature work here, but I'd be willing to bet it came from one of the older serials. Next: "Deadline at Midnight"