Lon Chaney Jr. does not appear in this film, despite his name credited on the video box for "Alien Massacre." His only feature for director David L. Hewitt was Dr. Terror's Gallery of Horrors (which did co-star John Carradine).
While John Carradine was busy shooting a day's work on "The Wizard of Mars", Doris Rich, the current Mrs. John Carradine, was playing Mrs.Claus in the campy Santa Claus Conquers the Martians (she died in 1971).