Santa Claus Conquers the Martians is a 1964 American Christmas science fiction comedy film. It was directed by Nicholas Webster, produced and written by Paul L. Jacobson, and based on a story by Glenville Mareth. John Call stars as Santa Claus, ten-year-old Pia Zadora as Girmar the Martian girl, and Doris Rich in the first documented motion picture role of Mrs. Claus.