Footage of the mole people was later used in The Wild World of Batwoman (1966) as monsters created by a super-villain.
The humps for the mole people were done by stuffing the backs of the actors who played them with newspapers.
Shot in 17 days.
The 2019 Blu-ray from Scream Factory presents the film in two separate aspect ratios, 1.85:1 and 2.00:1.